Comments
Description
Transcript
& : « »
& :« » : !" "$" %&: # ' !( * &2005 ( !"& ) / & « .» + #& , ! . " / – 1. #$% &'&(................................................................................................................................... 1 1.1 & ..................................................................................................................................... 1 1.2 % " .............................................................................................. 1 1.3 ) ....................................................................................... 1 2. %*&+,-.( /(0# ) $1#*%( ........................................................................................... 3 2.1 ( ................................................................................................. 3 2.2 %! ! ........................................................ 3 %! 2.3 ) .................................................................. 5 2.3.1 $ .......................................................................................................... 5 2.3.2 % ...................................................................................................... 5 2.4 / " 2.5 % ............................................................................ 6 ...................................................................................................... 6 2" 2.6 % " .................................................................................................... 7 2.7 ) ..................................................................................... 8 2.8 3 ...................................................................................... 9 2.9 2.10 ( ................................................................................................................................ 10 ............................................................................................. 10 ! 2.10.1 - " ................................................................................................... 11 " 2.10.2 " 2.10.3 2.10.4 ) 2.10.5 ) " .............................................................................................. 11 ....................................................................................................... 12 ............................................................................................... 12 " ....................................................................................................................... 13 3. /#+.-0-&$#% )-* +,(%$3-)-$-*./ $ %/(. /(0# ) $1#*%( ....................... 14 3.1 * World Wide Web-WWW .................................................................................... 14 3.1.1 3.1.2 0 3.1.3 - " 3.1.4 / WWW............................................................................................. 15 WWW......................................................................................... 16 " WWW ..................................................................... 17 WWW ........................................................................ 18 3.2 Dynamic HTML (DHTML) ................................................................................................. 19 3.3 ( XML .................................................................................................................... 19 3.4 Apache server ....................................................................................................................... 19 3.5 Microsoft FrontPage............................................................................................................. 20 3.5.1 ) .................................................................................................... 20 3.5.2 FrontPage explorer ........................................................................................................ 20 3.5.3 FrontPage editor ............................................................................................................ 20 i – 3.6 CGI (Common Getaway Interface) ...................................................................................... 21 3.7 ( & PHP..................................................................................................................... 21 3.7.1 / php ............................................................................................... 21 3.8 MySQL................................................................................................................................. 23 3.9 Java Javascript................................................................................................................ 23 3.10 Perl...................................................................................................................................... 24 3.11 H ASP................................................................................................................................. 25 3.12 ( (e-mail) ................................................................................... 25 "/ 3.12.1 ," ! 3.12.2 " .................. 26 ......................................................... 27 ! 3.13 * 3.13.1 5 " 4 ................................................................................................... 27 " " 3.13.2 / " ............................................. 28 4 .............................................................. 28 3.13.3 ( ! H.245 ........................................................................................................ 29 3.13.4 ( ! H.263 ........................................................................................................ 29 3.13.5 ( ! (.322 ........................................................................................................ 29 3.13.6 ( ! (.320 ........................................................................................................ 29 3.13.7 ( ! H.310 ........................................................................................................ 29 3.13.8 ( ! (.323 ........................................................................................................ 29 3.13.9 ( ! H.324 ........................................................................................................ 30 3.13.10 ( ! (.261 ...................................................................................................... 30 3.13.11 ( ! (.242 ..................................................................................................... 31 3.13.12 ( ! (.230 ..................................................................................................... 31 3.13.13 ( ! H.221 ...................................................................................................... 31 3.13.14 ( ! T.120....................................................................................................... 32 3.13.15 ( ! T.121....................................................................................................... 32 3.13.16 ( ! T.122....................................................................................................... 32 3.13.17 ( ! T.123....................................................................................................... 32 3.13.18 ( ! T.124....................................................................................................... 32 3.13.19 ( ! T.125....................................................................................................... 33 3.13.20 ( ! T.126....................................................................................................... 33 3.13.21 ( ! T.127....................................................................................................... 33 3.13.22 ( ! G.711 ...................................................................................................... 33 3.13.23 ( ! G.721 ...................................................................................................... 33 3.13.24 ( ! G.722 ...................................................................................................... 33 3.13.25 ( ! G.723 ...................................................................................................... 34 3.13.26 ( ! G.724 ...................................................................................................... 34 ii – 3.13.27 ( ! G.728 ..................................................................................................... 34 3.14 * ! " " .................................. 34 3.14.1 / ! " " ................................................................................................................................................ 35 3.15 Python................................................................................................................................. 35 3.16 ( 3-tier........................................................................................................ 35 3.16.1 ) ........................................................................................................... 37 4. #0#* #,-- .-$ /- 0-&$%3$ - .................................................................................... 38 5. )#,$&, 6( /(% )0 /6-,3 % %*&+,-.(% /(0# ) $1#*%(% /-* /#$ ,(/(% ........................................................................................................................................ 42 5.1 + Claroline ................................................................ 42 " 5.2 / Claroline ................................................................................ 42 5.3 eclass ...................................................................................... 43 5.4 % .............................................................. 43 " 5.5 ............................................................................................... 45 5.6 # ........................................................................................................ 45 ! 5.7 # .................................................................................................. 45 5.8 # ............................................................................................... 46 5.9 0 - ................................................................... 47 5.10 1 - ...................................................................... 56 5.11 0 ............................................................................... 57 6. %*3)#, %3 / ................................................................................................................... 73 7. $ 0$-&, 6$ ........................................................................................................................ 77 ) , ,/(3 / .......................................................................................................................... 79 )1.) , 1#$&3 / #00(.$ '. )1.1 # )1.2 # " .................................................................................. 79 ") " ...................................................... 79 ") )1.3 / ) "$ ! .......................................................................................... 79 ................................................................................................... 80 )1.4 ) )1.5 )1.6 # 1(3 $ 7. $1,*3 /'............................... 79 .................................................................. 80 ) "3 )1.7 /#$ ) " ...................................................................................... 82 ) ................................................................................................................... 83 )2. ) , 1#$&3 / #)$+#$,(%#'. ................................................................................ 84 )2.1 CRAFT (Craft Adaptation to Fast changing Technology) ............................................ 84 )2.2 Eurocom Expertise A.E. ................................................................................................ 84 )2.3 Boeing # .......................................................................................... 86 )2.4 Dow Chemical Co. ........................................................................................................ 86 )2.5 Ford................................................................................................................................ 86 iii – )2.6 Nissan ............................................................................................................................ 86 )2.7 Owens-Corning.............................................................................................................. 87 )2.8 PrimeSource................................................................................................................... 87 )2.9 SEMCO/McDonnell Douglas........................................................................................ 87 )2.10 Siemens........................................................................................................................ 88 )2.11 United Technologies Corporation................................................................................ 88 )3. )0 /6-,3#% . )/*8(% ........................................................................................ 90 )3.1 FORUM ......................................................................................................................... 90 )3.2 Virtual-U........................................................................................................................ 90 )3.3 LearningSpace ............................................................................................................... 91 )3.4 Learning Server ............................................................................................................. 91 )3.5 Symposium .................................................................................................................... 92 )3.6 Web-CT ......................................................................................................................... 92 )3.7 First Class/Learn Link ................................................................................................... 93 )3.8 TopClass ........................................................................................................................ 94 )3.9 TeamWave..................................................................................................................... 95 )3.10 ILIAS ........................................................................................................................... 95 )3.11 MANHATTAN ........................................................................................................... 95 )3.12 Claroline ...................................................................................................................... 96 )3.13 e-education................................................................................................................... 96 )4. %( 1#1-3#.'. ........................................................................................................ 97 )4.1 ( ............................................................................. 97 )4.2 ( eclass................................................................................ 107 )4.3 ( 1 Claroline........................................................................ 111 )5. 0#8$ - ............................................................................................................................ 115 iv – 1. 1.1 ! ( ! ! 2 ! " ," .( " " ./ , "2 " , " , ! ! " " ! ! , " " " 9 " 2 " " " ! ! " 2 .3 " . & " , " " " ! " , .# , " ! ! " , # 2 ! 9" . 1.2 ,+ ( ! "& + !%& $ # & " , , " .% " , , , 1.3 " , " ! " " . # . * - ) ! , , ! ! , - " ( ). / , " ( , ! ! # " / $ -% "& % , + !%& $ # & " . : % / 2 . " , / 3 / 4 , -( -( , ! " ! 2" ! -( ! / 5 -( /#$ ,(/(%. / 6 .% -( ! . ! - " 2 ". " . 1 ! ! .% . , , – / 7 , , -( , ! 9 . / ./ ! ! e-class " , 2 / ( " " ). / ( "). # , 2 * . / Claroline – 2. 2.1 . "& "( ! # / "& " - ). / " learning " " ! " " , " , ! ( ! ), "( ! " " e-learning ( " e-learning; ( / !% / 0" ". ( e. # " " " ! ( ! " /o e-learning , . . « " " ! .( " " ! . . , " , " ) ). - , , "" CD-ROM. ! ! ! ," ! ». 1 , .# , " ! & , " , “ " ” " . ! "( ! # , : " 1 , ), ", " 2$+ / ! /. " 2 ". ( " "( ! # ) % ) % 0/, (self-paced training). % " ( , " ( ), " . 2 " ! " " " .1 " " " " ." . ! ( ! ./ " 2$+ , " , " . 2 ". % " "( ! # ! " " ( 4 .( ) " " " . 2.2 2$! ( %! " 2$+ "&! ! " , " "& "( ! # "& ! , ! .- 2$+ , , " 3 . ( %! , " , ! – 2 ! " " " , " " ", " . " , " 2 ! , ! , , " . ( 2 ! " , , . ( ! " " .# " %! " " , " " % " . : " "( " ) " 2 , ! , ! . " " " ! ! ! " %! ! " , # " ! ! , ! . 2 ! %! , " ! " " , " : ) " # # / %! 1 # ! 1 " 2 " " . " "- " " ! . % ! %! " , ! " ". Internet Newsgroups. . " " . : " ! " , 4 " " " , " !, ! ! " . " . " 1 , " " . ! , " ! " 2" " Internet ISDN ! . ! Web . 1 " 1 " « . 2 » ! ! 3 " (videoconference). " Web " " . " " 4 " " " " " " – 2.3 / # 2.3.1 +" / !% "0 #" "( ! # /% " , % " " ! .# ! " " .: 2 , , . " 2.3.2 "/ .& " ", " " % " " " " , % " ! . 3 , ! " , 4 , " . % # , # , " ((" !, " ! %/ 0" 3 # " % , *)#) , ! " .: 4 " " $)$!, ) 7 " 2 " , %/ . !, !, 0 !, # 1 ) . # " ( )) " 2" " . ; 9 ! " " ! .% 0" 3 , ! : ( #!"&, %/ %/ ! " " , " " , ! ! / !, 0 !, (# &, ! # &, " ( %/ , " ! " " 0 !2 %/ ,* " !2 0" 3 , + #, ) #) , "/# .( %/ %/ % "&. ' " , %/ 3, % "&, , " 1.#.). " " , 4 " , ! , " ! " " ! , " , 2 " 4 , " ) .% % , 9 , . , " : WWW , ! " , ! , ! , " , ! .( . ) , 2 " ! . 5 " " 2 . * " " " ! " ! – / ! " 9 " ! " ", " 2 " . ( 2 ! . ( BAOL " BAOL (British Association for Open Learning) " , " ! .& " , " ’ " ! , ! .3 , BAOL " " * " , ( " , " # 9 ), ! , " , , " ’ , , , " ". " " , ! 9 ! ! ! ! . 3 ! ! " . ( , " . ( " " " . " : " .- 2" , ! 2 .- " 2 " 2 ! " 2.4 "( ! # " $$ (/ !, +3 3 " .( , " "2 " " 9 , , . " " " " ! 2 . " : % % " . ! " ! . ! % % ( .% " " " , ) . " " " ! ! " . " 2) " . : ! ! ! " " " " 2 " ! 2.5 .3 " " " , 2" , " ! " +4,/ " ! # # " " " " . ( " ! , . ! " 2" , " 6 . – " , 2 , .& ! ! *# . ( ! # " " " , , +4,/ " ! # .( , " " ! . , 2" " 2 " " " " 2 .5 " " , .' ! " " " . " $ , , " . " " , <" ! ! . , " ! . 2 µµ , " , , µ ! µ µ µ , ! , µ " , µ ( , µ , , " ! " " µ , , " 2 . , , , " µ , " µ ! " , .& " , " " . ( , , , . / , , , , " " " , " 2 4 9 " ! , . ,+ "& "( ! # ( "& ! ! " " , " . 3 ! " : " " " , 2 " " (Information and Communication Technologies-ICT). ) " ( ! , " , 2" 2.6 . 5 µ ! ! " , µ . " : " " . 7 " – ( ! , "2 " ! . " ( " % . " ( ) . = " , " , 2 " 2 ", " . ( " " " / " ," " ! ! : ! . ! " 1 ! ! " , # . * ! ! . " " " ! ! ! . ! ! 1 " " ! . " " ! " ). ( . " ! 3 " ! ! . 2.7 ( ! %/ "& "( ! # "& , (in-service training) / ! " " . ( : , > . ) " " ! , " % " 2" ", " . " . # " . " > ! , , « 1 # " ( " , " ) ( " ! " . » " , ). ! , !. 8 " , – ! ! " " . " , # 5 . " " " " " . - , " (cost effectiveness). " ! " " live interactive " ! ) ! " .% ! " " " " ! ! 1 ( " " " " " ! " . 2" . ! ! ! " , , ! ! " , " " . / " " "" " ! " " " . 1 " " " " " ! . " 1 " " ! " " ! 2 . ! ( ! ). $ /#$ , , 2.8 . " " ! %/ ( 2 , " 4 "& "( ! # " " . " "& " , / " " 4 " , . ( " , : ( ! " " : " ! , " ! " " " . ) " " . ! 3 . " ! " ! " ! . % " " ! ! 9 " .( 4 ! ! , – " « ! ». " !. " , " " 4 ). ! " ’ ( ! ! ( ! , 2 " " ! ! !/ " . 2 & ! 2 2 " 4 & 2.9 (extra " , ! ! extra " ). , # : " " " " ! ( " ). ( " " . ( ! " " " " ! " " « ».- 4 " #$//#$, ! . . !, " " " ! " , , ! ! , ! 4 ./ " « ! " » , " " $ " " " . ( " 4 " " " . - " , , 4 .( ! " ) , 4 " , ! ! . # ! 4 " " ! 4 2$+ « % " "( ! # . , ! " ! " " . % .# " , , 4 " ! " ». " " 4 " 2 " 2.10 (" 4 . " 10 " .- – ( 2$+ " " "( ! # " " , " , , 4 ! " 2 , ! ! !, " , " " < " ! : ! (# . % " , /" ! # / / / ", " ". # ! " ( " " "( ! # " audio / video . " ! " , " . 2 " ! " . # ". / 2 "/ " " 2 ( -, / 2$+ "& "( ! # ( ! 2 (Learning Management System LMS). ( -, / , 2$+ "& "( ! # 2 "& 2.10.2 % " " " + # "& 2 " 0" !2 ! "& " ! . , ! 3 .) ! /,& ( -, / & 2$+ ' " .). " ! , ! (Internet, E-mail conference " / $ 4,/ " (Collaborative) ! # ". ! ! ! , " ! " 2.10.1 ! , CBT, Internet ( " ". & ( -, / & " ! : . 2 , " " " . . 2 . ( ! . #! ) 2 « 2 "4 , 2 2 (discussion forums) ! . » (chat rooms) 2 (e-mail) " " . " . ) " " . ! " " " . . " . , ! " ! . " ! ! ". / " web browser " 2 " ! Internet cafe) . " " " " ! / 11 . " / " ! ( . . . – . # (customization) ( profiles) 2 , . . . . . " . " . " 2 2 (online tests) " ! , . 1 . » « " " " , " ! . 1 1 " " #$//#$ , . " ! " " . 1 1 " " ! !. ! ! 2.10.3 " % ". ( $%& , 3 : ! / ( " " " ). # " " " , / ! " . 2 . % . ! " ( " !. % ! ! " ! " ) " ) . . . ! " * # * * # 2.10.4 , " " ( " . , " . " " . ! . ! . . ( -, / & 1"& , % ! " . " " , ) 2 , " ". 12 – 3 " ! " " : FORUM, Virtual-U, LearningSpace, Learning Server, Symposium, Web-CT, First Class/ Learn Link, TopClass, TeamWare, ILIAS, Manhattan, Claroline, e-education. , 3 2 WebCT Claroline. " , " ./ " ) " " 4 # ! # ! ! 2 " . " : ILIAS, Manhattan, Claroline ! 9 " 2 ( ) ! , " . 2.10.5 , # e-education. , " , ) ! ! !. - " ! ! " ! : $!" $ +" / #" " " ! 2 (! 2. # , / 0" ! " ! " " " . - " !4 " ! " " ! " $!" $ ! $ # / # 12 " " "/ " /, " 4 , 0" ! , * "& ! ! 2! ("& " ! " ! !. + # "& " 0 ! , " " ! !. $!" $ ! ) ! .# 4% " "&. # " !2 ( ! 2. " ". ! ! ! " " . " , # " ! " , .( , ! ! , 2 , " " ./ " " : / " AICC (Aviation Industry CBT(Computer Based Training) Committee). H AICC " AGR 010 (AICC Guidelines and Recommendations). " LMS’s AICC certified " " ! " " " " . / " IMS Global Learning Consortium. H IMS ! ! .2 XML (eXtensve Markup Language). SCORM (Sharable Content Object Reference Model). / SCORM ! " ADL (Advanced Destributed Learning), # > (Department of Defense). % " SCORM " " . " . 2 " XML. ! " 13 – 3. 3.1 O # World Wide Web-WWW " " (World Wide Web, WWW) Internet " . / WWW " ." " ! " " ! ! . / " , " " Gopher). : " Web. < GIF 2 " " .( ! , (" ! ! ! , " 2 " 2 ! , , , " " (" MPEG ! ! internet (" 2 " browsers, " ), HTML./ (Universal Resource Locator). / 1). WWW , " "" (hypermedia) 2 1 14 (user interface) " ftp) WWW UNIX ). - WWW " HTTP, FTP, HTTP " ! WWW. / ( " World Wide (PostScript, HTML, .), 2 URL WWW (% – / World Wide Web ! ! (hyperlinks) ! ! servers. % , server, . / WWW , " " " " , video ! " .) " ’ " ! 2 ! . / # WWW ", ! ! Web. " 3.1.1 + ! WWW: WWW !% , WWW % ! ! HTTP , 2 , ! WWW (multimedia) .3 HTML " , " WWW , " . - HTTP ! ! " " . ( (% 2): 2, / HTTP (Hypertext Transfer Protocol) " " ! " WWW ! 2 2 ! ! , (Uniform Resource Locator) ) URL WWW "" .3 " (server). - WWW " . " (hyperlinks) , " . - WWW HTML (Hypertext Markup Language). ( ! . 2 ! ! " ! ! " WWW . , " ! - ! DNS . . " " " + ", , " Client-Server " " HTTP HTTP. & " . " " . % " " . / URL’s , 2 HTML 15 : " . / URL WWW : " ( " , " " – ! 2 , WWW . 3.1.2 " .% " " URL " ! WWW $!, " % WWW ! , ! , HTTP " " " " WWW " POP3, SMTP, GOPHER, WAIS, " (% " ! ! .# " , 3): ! 3 , " , ! WWW " " " 2 2 ! " " MIME ! " 3$3# ! ! plug-in. 3 ! plug-in " ! , WWW " MIME ! ! ! " plug-in . ", .3 " plug-in Library) 4 ! " " (% " 16 , " .5 ," MIME ! plug-in " " ! . .& .! 4): DLL (Dynamic Link WWW .3 – 4 / HTTP - Web, " " internet. ) " " " 2" HTTP/1.1 " caching IP Web. 3.1.3 . " , " " ,( & ! HTTP " HTTP server " WWW ( WWW " " . # " 2 password ! "( ! # " WWW " " ! . & 4 Web " " " internet (persistent connections), pipelining, (IP address preservation). " " internet. 4 " " # , " " " " , ! ! " HTML " " 17 " ! " . " , HTTP .!, .3 ! ! HTML " ! ! " " , !. 2 ! ! WWW – 3.1.4 % &$ " # WWW " RFC2068 - Hypertext Transfer Protocol - HTTP/1.1 / (HTTP) " 2 " 2 HTTP/1.1, " , ! " . / 2 . " HTTP ! , . RFC2068 HTTP/1.0, " " ! ! , ! . ! 5 " , 0 " HTTP # 0 HTTP/1.1 : TCP , ! " . ! ! TCP " 2 ! HTTP " TCP ! . ! . . / RFC2068 " HTTP " : GET, POST, PUT, DELETE, TRACE. % HTTP/1.1 ! : Basic Authentication Scheme Digest Authentication Scheme. 5 " HTTP/1.1 Content Negotiation. ( ! " " , ! ./ 2 2 WWW , " caching . RFC1738 - Uniform Resource Locators / RFC1738 WWW .5 . % URL : URL’s. ! ! " , , " ! <Scheme>: <scheme-specific-part> URL ! " (<scheme-specific-part>), 5 , (<scheme>), " " mailto, news, nntp, telnet, file , " ! .% ! " WWW : ! . * : ftp, http, gopher, http http://<host>:<port>/<path>?<Searchpart>, host " HTTP ! " " HTTP " (" RFC1866 - Hypertext Markup Language 2.0 " , port " GET 80), path HTTP POST). HTML. ) " 2 " ( . / HTML SGML 18 . % TCP ! , searchpart , " – HEAD . BODY. / HEAD BODY , HTML, ! " 2 ! " ! : " . + 4 .( " ! . " " " HTML. - " ! " HTML . " 3.2 Dynamic HTML (DHTML) ( Dynamic HTML ! 2 " " WWW 4 ./ Cascading Style Sheets (CSS), Document Object Model (DOM) DHTML " .# ! " " ./ , ! WWW 2 , 2 , WWW . 3.3 ! Data Binding. 3 2 ," " DHTML " XML $(3 Web Netscape Navigator browser, " « » Markup Language) . 3 , XML (eXtensible tags, .3 Web " o Internet Explorer. : ! " " ! ! . ( XML . 3 2 markup " markup ! 2 .5 9 " ! " " " , : " " , " , 9 " ) " 4 « " " World Wide Web Consortium, Consortium. ! Working Group " " » ( XML. XML " ! ! " , . ( XML " XML 3.4 Apache server - Apache HTTP proxy WWW Includes). # . * CGI, ! UNIX, ! " NCSA HTTPD. . - Apache 1.2 " HTTP/1.1, " " 2 2 .) , , , " .) ! CGI , SSI (Server Side " modules Apache API, .- 19 – ! DBM ) ) * " " documentation. 3 : " " . . log . Apache. 3.5 Microsoft FrontPage /o FrontPage Microsoft " Web ! HTML HTML 4 , . - .% ! « + " ! " " Web-site. 3 " , , " , ! 4 HTML " ./ » browser. Web- FrontPage ! Web- 3.5.1 * (( $ #& FrontPage / Web.& Web" ! ! (login name) " " " " ! WWWWWW.( " password ! ". FrontPage Web " FrontPage Web ! " " (*.gif, *.jpeg), " Word (*.doc) postscript (*.ps) . FrontPage Explorer FrontPage Editor, Web" " FrontPage FrontPage " WWW.% " 2 .( " " (password). /o FrontPage Web ! . / FrontPage ! " FrontPage Web FrontPage Web " login " " ’ " " " . / , html, ! " , Microsoft 3.5.2 FrontPage explorer FrontPage Explorer .# 3 , " " FrontPage Webs " FrontPage Web, FrontPage Web, . , 3.5.3 FrontPage editor - FrontPage Editor FrontPage Web. ( ! ! " 2 " . " , .3 , Microsoft Word, ! ! 2 (" " " (hyperlinks) 20 ! HTML. Microsoft Word) , " ," , " – (bookmarks). # , FrontPage Editor, 2 . " 3 ! " HTML " . 3.6 CGI (Common Getaway Interface) CGI ! / " - Fortran, Pascal, C " Web HTML " " .: server " .: " URL browser 4 ( Web server Master). 3 ! 3.7 " ! (Shell scripts, Perl programs, compiled " 2 .). % .( " browser ! , URL ’ , " " , " . 3 " " , CGI " server " ) . / CGI scripts 4 CGI scripts 2 ". / server, " " " (Web CGI ! ! HTML. PHP (3 ( php, ! !, , " / “Hypertext Preprocessor” ! .# HTML . ( ! .- ! ! ! C, Java, Perl 4 ! 3.7.1 " " , scripts " scripting " " .' " # ! , php web ! " web . " php H php server-side scripting, " " CGI " , " " " , " " , cookies. php " . * ! ! php scripts: Server-side scripting. " ! , . ! , php parser (CGI or server module), server browser. O server php. H php web . Command-line scripting.3 4 php script , server browser, " php parser. scripts ! cron ( Linux) Task Scheduler ( Windows). Client-side GUI - / $.&. ? php 4 , ! (php-GTK) . 21 – ( php " ," Linux, Unix, HP-UX, Solaris, OpenBSD, Microsoft Windows, Mac OS X, RISC OS " . # , php 2 " " serves (Apache, Microsoft Internet Information Server, Personal Web Server, Netscape and iPlanet servers, Oreilly Website Pro server, Caudium, Xitami, OmniHTTPd ). % " servers 2 module, " , 2 CGI, php CGI processor. - " php " ! " . , # php " " . ' " " " ! php , 3 " " . 5 . " HTML. ( php " Flash. ) ! ! XML . ( php , " " , PDF XTHML , ! ! server-side cache " " 5 . 2 " " php .5 , " " " web " ! DBMS " " 4 " ". 2 . " Adabas D Ingres Oracle (OCI7 and OCI8) dBase InterBase Ovrimos Empress FrontBase PostgreSQL FilePro (read-only) mSQL Solid Hyperwave Direct MS-SQL Sybase IBM DB2 MySQL Velocis Informix ODBC Unix dbm 1 # ( php " , php 2 ODBC (Open DataBase Connection Standard) ODBC . " ," LDAP, IMAP, SNMP, NNTP, POP3, HTTP, COM ( " . 1 " " . ( php complex data exchange " " web 2 Java , ! php COBRA extension " / , php Extended Perl SAX DOT " . > " .+ extensions 2 . parsing XML XSLT extension php , IRC , 22 , " ! Windows) sockets 2 WDDX !. " , , , POSIX " ! 2 4 XML (gzip, bz2) – 3.8 MySQL ( MySQL ! ANSI-SQL. ( ! internet. ) C 4 " " C++ " 255 " ! . " " ! ! " ! .( .( " " MySQL Server web site . # , (Windows, Linux, AIX, Solaris, .). # ! compilers. ( MySQL . - " " ! " ! site site, " " site. ) " " , " .) " " , MySQL 2 4( beta ) !4 "2 " ! . 3.9 Java ! Javascript Java " Javascript ! " ! ! " . " . ) " " . ( Java Sun Microsystems, $ ! 1991 Oak. ( 3 1995. ( Javascript ! " Netscape Communications Corporation LiveScript. H Sun " Oak Java < Oak Netscape LiveScript Javascript " Sun Javascript “ ”. " , " .3 ! . " ! : Java Javascript ! Sun. " client. ! compiled server Object-oriented. : " " interpreted (Web browser). Object-based. / . Objects ! . objects " binding). runtime ( compile-time ( ) ( " " - ). 4 Compiled code Web applet / . " 3 ( . . video - built-in - ! . ) ( client . " - Netscape. " ! ). 23 objects 4 ). scripts " / scripts ( " binding). 2 Web browser. ! HTML . 2 – . % . " " * ! Web . 2 % , editor. ( , # Javascript " Java Java. ( Javascript " Client –Server.% . " " " " " " 2 classes " client-side applets % , Java applications ! applets " client-side . . / client applications " ! Web browser text client-server " server. ( Java " server-side . clients servers 3.10 Perl ( Perl Wall. ) !, ! " Larry " " World Wide Web, text processing, Internet, " , portable easily-developed ! . E compiled. " " " 4 " , ! object code " compiler. ! Perl 2 compiled " ! , ! computer ./ " Perl Unix, Windows NT, Macs, DOS, Plan 9, OS/2, VMS AmigaOS. # . / CPAN (Comprehensive Perl Archive Network) " utilities, " Perl " " . 3 4 , , module .) " " " .# . % Java, Perl " . compiler ! " " Larry Wall. ( Perl 2" " GNU General Public Licence Artistic Licence. 5 . ( Perl .# . - interpreter Perl C . - compiler Perl 4 Perl " " C " " " . ( Perl C XS ! C " Perl " .# .( ! , hash , debugger, " report generation, , utilities CGI scripts, interfaces , ! " Perl. # . ( Perl «taint checking» 2 . , ! " , ! " compartment site . ) .# 2 Perl . ( Wall Street, . % , , " Human Genome Project ! Perl .# ! . ( Perl ! " ! ". # " 4 Perl, Perl 4 " . ( Perl 2 " ! " ! ! 24 – . 1 .# .) !, Perl, ! , ! ! . / .# " ! C++. # ! " object-oriented. ( object-oriented Perl ./ ! ». ( " , " " " Perl. 1 object-oriented Perl, " Perl : «* ! " " . C ! " " , " !. 3.11 H ASP ( ASP scripts ! (Active Server Page) " HTML .% , script , 2 2 " ASP VBScript Jscript ’ " ’ HTML . ( script ADO (ActiveX Data Objects) ASP * * 1 2 ! ! . / / forward), ! ( Microsoft. / # (e-mail) + (Electronic Mail-email) . 3 3 (%13). % ! / ! 1 %! , 2 « ! » . / ! " , " ( ’ " ! , , ! / ! , ’ . % ! ( ( " . / " " ! " ," (video). H ! !, : . 4 " " IIS ( , Visual Basic. " " (! HTML . Microsoft. ASP 3.12 "2 : " 1 5 2 URL. 3 ASP " scripts, web " ( Microsoft ! - " " ! (store-and! , ! ! " , ! " " " " ! " ! ! " 25 : – 0 ) %! " , . 3 ! .5 " ! " ! , ! / , " " " " . , " , " " .3 " , . ! ( ) !/ 2 .( 3 ! " " ," " , . " . # 3 " ! , ! " . ( . " ! ) 3 ! 0 ( . " " ( ! . . 1 ) " - " .3 " " ! . ! ) ! ./ 2 " . ! 1 ! ! " ! ! " ! / 1 ! ! , ! . ” ! “ ! . " ! ! ! , . 3 3.12.1 ,( & ( "( ! ( " ( !2 ! / . / ! / " + / # " " ! # " , " . - " " ! " ! ! ( " . "/ 26 » ! ./ !/ " ! «2 " ( " , ! 2 .& , " – 3.12.2 + ! !% % 5 2 % "( ! !2 + / # ( ! ( . ( " X.400. ! / " !/ 2 5/ ! 1 (Message Handling System, MHS), .MHS .(User Agent, UA) 3 " %! 3 (Message Transfer System, MTS). ! ! . / %! 1 " 3 3 3.13 + ( email client) 3 ) , 3 . / MTS " (Message Transfer Agents, MTA) ! ! . 3 3 ! ! , email servers. - 3 (Message Store, MS) ! ! " UA ! MTA, " UA " ! . / ) (Access Unit, AU) " ! ! . " " " ! " ) " 3 # "( ( , " 3 ) ! 5"& 4 , 4 " .( ! ! , " ! " " " (video) . 4 : * "( ! ! 5" "/ # 4 ! " ’ & "/ # (point to point): " ! . ) " . 4, 27 ! , < ! " – 4 ! , modem, ", Internet. : 4 ! ! ! ! . "( &: %’ " ! 5" / 4 . " 4 " 4 4 , 4. " "( ! 5" ,& "/ # 4 " ! video, . ( ’ ! " . / , " ! , ! " & " "/ # (broadcasting): & (( " ! ’ , 4 " " 4 «2 . 3.13.1 6 5 " . 5 " . # " " " " 2 » " ! !, ( 1"& , " $/ !, + , " , " " . - " " .- " " " .. / " ! " 4 . - email ’" WWW , ! " , ! video ( ’" " ) .& " " ", 4 (ISDN, Basic Rate, " " ./ " " 2 ). - % % 4 TCP/IP , /.120 4 " ISDN, " 4 ! . # & "( ! 5"& 4 " ! & "& " ! " ! 3.13.2 " . 5 , (.323 (.324 ! 4 ! " " (.320 4 " " ! ! (PSTN). / , (data conferencing). / " 4 PIM, DVRMP, RTP, ST II, RSVP 28 ! MPPP. – 3.13.3 2 ( ! (.245 " " H.245 2 ! ! " 4 , " 3.13.4 2 ( ! (.263 ! " " . / !, ! ! ! ! . " H.263 , 2 . ( " (.261. " " " : sub-QCIF, QCIF, CIF, 4CIF 16CIF. " " .# " " " " , " " ! ! " " . " : Unrestricted Motion Vectors, Syntax-based Arithmetic Coding, Advanced Prediction PB-frames. , ! ! 2 " ! 2 video " 3.13.5 2 (.322 ! (.200/AV.120 " LAN, ! 2 " " ( ! " (.320 - N-ISBN, ! 2 " ! ( ! " 4 3.13.8 video-conferencing " , 2 " .320 2 ! . ( ! " 2 ITU-T. % ! " " (.xxx " G.723.1, G.729, H.262, H.263, H.310, H.322, H.323 (.324. 3.13.7 , " (.323. ! 2 2 .- " 3.13.6 ! format " .322 " ( ! ! - , " " (.320 , " H.310 (.310 2 broadband "(.200/AV.100. % ! " " ! ! , ! (.310 " (.310, 2 ! .( 2 2 "(.310 ! " . 3 " "- ! " . 2 " ( ! (.323 multimedia " . / (.323 video ! " - .323 " , , " ", ! ! , " . / LAN " 29 (.323 , ! , – segments " ! , (.323 " (.323 " segment " ! .) LAN segments ( " . / ! . ( " " % " " : " , Internet) 2 ! video ! " H.323 .( ! . ! ! " (.225.0 , (.261 (.263 G.711, G.722, G.728, G.729 G.723 /.120 multimedia " . ( ! (.323 " ! ! ! (.245, " ! ". ! (.245 ! ATM ( ! ! (.310) GSTN V.70 ( ! ! (.324). / " 2 interworking ! . / (.323 ! ! multipoint 4 -ISDN, (.320 .! ! (.310 ISDN, (.321 , (.322 " , (.322 GSTN ! V.70 GSTN. ", 3.13.9 2 ( ! (.324 (.323 ! video, ! " H.324 2 / , (.245 . ( ! ! (.245, ". ATM ( ! 2 ( ! interworking (.324 ! MCU ( ! ! " ! " ! " ! 2 , 2 , ! , video " ! , ! - video " ! ! ! " " ! " ! 2 (.324 " , (.263 (.324 ! 3.13.10 ! " " " , " 2 ! " ! ( multimedia " GSTN. / modem V.34 ! ! . ! ! (.245 (.245 (.310) (.323). / . / ! 4 ! " ! . (.324 G.723.1 . > : (.223 ! .( ! ! ! LAN " 2 ! 2 ! (multipoint) (.320 (ISDN) " .261 (.261 " (video), " p*64 Kbp/s, " p (.261 ! .1 , ! (.261 Basic rate " Primary rate. ( ! " 30 ! ! 30. 1 " ISDN (.261 " (.221, (.230, (.242 – , ! video (.320. % (.261 ! 4 . " : " interframe spatial " interframe temporal . % inteframe " DCT (Discrete Cosine Transform) 2 , 2 ! 8*8. % interframe 2 " " , " . 1 , ! .# , "2 ! , " bit rate. / bit rate . 5 ! " " . 1 ! ( ! (.261 2 ! format QCIF (Quarter CIF). / CIF 2 " ! H H.261 " " " " . 5 , " " . 3.13.11 ( ! 2 " : CIF (Common Intermediate Format) " 352x288 QCIF 176x144. " ! " MPEG. !. " ! 2 " " " " .242 " , (.242 video . # ! , ! (.242 !, ! " . ! " " ! . % , .- " " 3.13.12 ( ! ! 2 ! , ! " ! , ": video, . .230 « (.230 video » (.320. 3 2 . / (.230 " . " " " (.221 (.242, " " , " . 3.13.13 2 % ! " " H.221 (.221 B ! (12 "(11 (0 . ( ! video. ( ! # " : G.704, X.30/I.461 !. (.221 (" # , . 3 " . . ! ! " 31 ) . ! – # 64 Kbit/s " 384 Kbit/s . ! , 3 ) " 3.13.14 ( /.120 , /.120 2 ! ! 2 Mbit/s). " T.120 2 ! ! . ( " 300 bit/s 2 multimedia " ! , /.120 (multipoint) 4 . % " /.120. . - /.120 " ! ! . ( : /.121, /.122, /.123, /.124, /.125, /.126 /.127. 4 /.120 3.13.15 ( " T.121 2 ! /.121 " , " " .% " 2 ! , " ! " , /.120. # ! " /.120. 3.13.16 " T.122 2 ( ! multipoint /.122 ) " - " multipoint , " " ! " .# "" . 3.13.17 . , " , . ’ ! " token " " !" " T.123 2 ( ! ! 2 " " ! ! /.120 " , /.120. # /.123 ! , ! 4 . , # 3.13.18 ( ! /.123 2 " " , ! . " T.124 /.124 4 " 4 multipoint 1 1 ! " " ! 4 Multipoint Control Units (MCU). # (Generic Conference Control-GCC) 4 .) GCC " 4 . 4. , " 4. 32 : , – * % " 3.13.19 2 " T.125 /.125 . 2 2 . 4. " ( ! " ’ " , Communication Service 3.13.20 ! " . % 2 /.126 ( . ! Whiteboard) " " 2 " T.127 /.127 ’ 2 " , 4, " " G.721 2 ! G.721 " U-law 64 Kbps. " stream 2 bit " G.726. ! " bits 64 kbit/s stream 32 ADPCM. % ! G.721, G.711, sampling rate 8 KHz. " G.722 2 G.722 ! PCM. / ! " 50Hz ) " G.721 2 % ! 8-bit PCM (Pulse Code Modulation) 3KHz " ( 5 ( ! (PCM) " , " G.711 2 3.13.24 , " " ( ! G.711 A-law compading ( ! kbit/s. ( , " ! 3.13.23 ! ( video. + 2 T.124 . " " conferencing ! ! .( ! /.127 /.120. ) 3.13.22 2 Multipoint 2 4 ) / " .* /.122 ! ( 4 , /.122. " 3.13.21 .% " " T.126 2 ( ! " " , " , ! G.721. ( G.722 ! " SB-ADPCM. ), ! 2 " " 2 ! " 2 7KHz, 3.4KHz. ! 33 G.711 ! " G.711 " .( ! G.722 sub-band " ! G.722, ( ! " " – 3.13.25 " G.723 2 G.723 24Kbit/s. / G.711 (PCM) " ! ( ! 5 G.724 3.13.27 " G.722 (SB-ADPCM). " ADPCM ! " G.723 . .( ! " G.711 ! " bandwidth G.724 ! (lossy) " G.724 2 ( ! 4 G.726 " 3.13.26 " " 3.4KHz. ( " " LD-CELP 2 G.724 ! G.722. ( " G.728 2 ( ! G.728, ! " bit rate, CELP (Code Excited Linear Prediction). 0 16 Kbps ! 2 2 3.4 KHz " " " " . ! " , " G.711 G.722. / ! 2 low-delay code excited linear prediction (LD-CELP). / CELP " ’ " 2 ! ! ! " ./ , . CELP ! ! " " . 3.14 " ( # ( 1"&/ $ ! Chat) ! /" 2/ ! ! " " !, + , (Internet Relay Chat-IRC " " . ( " (talk), $/ " " " . 2! : ( . . % " , .% 2 . - " ! ! " ! 2 , " . , % 2 .% " " " " , 2 " ! . " ( " " " 2 . & 2 2 # ! 2 " " " .% , ! , " , 34 / video " " " . ! , " % , " " . – 2 " 3.14.1 $/ / " . " % !, + , & "& " " " #& ( 1"& / $ /" 2/ " " " " " ! ! ! .5 ! . 5 ! RFC 1459. " TCP/IP 2 " . / RFC 1459 .% , ! ’ " ’" " " ! , .3 " (backbone) " ! ! 3.15 Python H Python interpreted, object-oriented ! ! Perl, . ( Python " " " ! , " ! ! " " Unix, Mac OS, MS-DOS, OS/2 " Microsoft Windows 98. ( Python + , " Guido van Rossum, Monty Python' s Flying Circus. " . ( Python " " .5 " " Python " " . ( Python " ! , .3 C C++. ( Python " Microsoft Active Server Page (ASP). " , ! % Cricket 3 ! ( ) ! Python. # , « Z», " $ , Python. 3.16 + ! / !% 3-tier " web ! (3-tier architecture). ( 2 " " " .1 " , ! ". 1 " . ! components. / " ! : Database tier " , " " . % , , Database Server " ! , " 35 " – . ! " Application server tier .- # " . " ! " Application Servers " ! " , Application Server Remote Clients. .% . 3 " , ! ! " .* " . 1 " , " 2 2 " ", Application Servers ! " , ! ! " , " ! ! Client tier . / User ! . rich clients. / thin clients interfaces, " browser. / rich clients " 32-bit Windows. * ActiveX components DHTML . (user screens) 2 .( Client Application Application Servers " " .5 " " ! Client Application Server, " ! (Leased Line, Dialup, Internet Connection), 2 ! " " " ! .( Client-Server (3-Tier), " TCP/IP, Client-Server (2-/ier) Fat-Client, Fat-Server, 2 (% 6): / Interface. % " 2 thin clients HTML ! interfaces " ," % ", ! ! User Interfaces 6 36 – ) . 3.16.1 ( " , ! ! %/ # " tier µ 3 2 + ! !% 3-tier ! µµ µ (components) ! servers " µ database tier. " client tier database tier " ! . / µµ µ µ ! / components ! , µ . : 2 * server-centric, application server user interface components µ µ . ! , C++, user interface µ Visual Basic. . / components " µ ! ! µ (servers), ! ! . Load Balancing. / components µ µ µ ! ! servers , " " server. ! " . ) µ " ! µ µ 2 , «µ » µ" µ µ components. # , ! µ 2 µ µ . - " µ ! ! , + ! !% 3-tier µ µ" " 2 µ µ" " . Components Application Server Tier µ ! ! µ µ µ . ( " component µ , ! " Administrators. " ! " . ( " µ " µ mainframes µ µ .5 gateway server . ., component µ µ . ) " 3-tier, : ) " " " " . # 4 ! . 37 ! ! . , ! – 4. - % " ! " 2 " - ! " " ". / ! ! " "; # ! ! ! - ! ! !, " , 2 ", " .& " " , " - ! , 2 " " " " .& " " " " .&‘ , " " , ! , % , ! «GNU» ( GNU is not Unix ) ! 2 2 ! . # , ! 1984 " , " ! . ( GNU ". ! " ! Free Software Foundation " , , " ! " ". & % ! ! " .) , , 2 ! " 1 " * " , GPL software) (freedom) " , " , " ! " " " " , " ;( ! % " " > GNU (GNU General Public License, GPL). 0 " GPL, , " " .% , 4 2 ! " , ./ , " «copylefted» «copylefted». ", ! , " ! " !. % , " « ! « "». ' " , % 2 " (price). # , " ! 2 « ! », " < : & ! " ! ! <" . 2 2 . " . ) ! & " ! Apache FreeBSD, , Mozilla ! " , .# 2 Linux sendmail. # ! ! " " , ", .3 : , ! , " " " " - 38 ! . , ", "» (free " ! " ". , ! ! . " " , , – - , " , ! . " " " ", 2 " , " ", ! " % " " ! , " " , " ! .& , «GNU». / " , " "; 4 ," , ! & ! " " . , " 9 " " , " " ! " Linux, , ( Linux) , " ! ", , ! " , ! ., ! Apache, Linux), Corel ( " ! " ! , " " " « IBM ( . ) "» ), Linux), Delphi, JBuilder , ! " ! ", , " ". " . / ! " . 5 , " 9 " .# " " , " ! 2 " " ! .* ! ' Oracle ( Word Perfect, Sun ( Linux, StarOffice), Borland InterBase ! , " " ! ! " .% , API (Application Program Interface), " , " ! API. 5 ! " + , " X, , ! " ! ! " , ! 5 " , X " , , , " " . & # " X, " ! ", " " ! !. ! project !, " ! !, " ./ . ", ! ", project ! . " # " ! ! . ., " 2 9 " 9 " !, ! Corel Draw Solaris, , " " " , .# ! , 2 ! Linux " : , " 2 .# Linux, , " . 3 Red Hat " < " . & " " , " . & " " " " " " « ! 39 » – , " « " " project . !, ! , ! . - " 2 » . ," 2 ! « ». ! , , , " ! « !, project, ! " ! , ! " " " . " " ! ./ ! " ./ " , . : ! ! , ! ! " « , ) 2 " " project 2 "" " " ; & # 1 " " , project , 1 2 " ;) , ", 3 ) ! ) " , , 3 " !. " " , " , " .- ), " , , ," ! " ) " " " " ) , " ». ) " ! .' " " " " , , " " 4 " ! ! project, ! . " !, 2 ! " ". 3 ! # " project ! " ! , " ! , ! " , " , ! , , " , " , , 9 " " ! » » " 4 o. 5 " ! " " ./ " ! . # ! 2 ! « ! , . 2 , " ! ( " . / " (" ! ) " ! , ! " " . ! %! 2 2" " " 2 ) ! ) , " % ! " " " " , !4 . & " ! / , ! 2 ! . / " ! 2 , ! ! " 2" , ! " " . " , " ! 40 " . – * , , ! ! ! " ! " ! ! " " 2 . " , " / : # / ! +, ! ". % %/! .+ / $ (" .! , " 2 . 5 , " ( ! . / (. " 2 , *(%/ & -. " .) " " 1, " " (" ! ! , 0 , " /. ". ( " !25 ! " !.& . ! " & , " " 2 " " # 1 ! " . # " " « 2 » . " ! , ! ! ! Linux, " ! . - !.& . &. / ", " .5 " " « " ! , Unix, Unix, " < , " " 0 , 2 .3 .+ 1 Linux " ! " ! ! Linux, .- .5 " Linux , , ," " ! " " " ! , , " . % ! , . ! ! ! . ! , ! ! ! " " " . 1 " , " " ! , !4 .: , ! " " . / " " " " ! . 41 2 2 , " , " . ( " ». ( " , " : " " " ! , " ! , ". " " " " project " " ! ! project , " ". 2 " project . # , , ! " " » .) Linux, " ! , " ! «6 1 " " " " . " # . ( ! !, ,*("/ Linux " " , . ' " .# - # $ %$ , " " " , – 5. , , " GUNet (Greek Universities Network). / 18 A.E.I. 14 /.#.$. " " < " 6,7 " #.).#. .#. . (# ") " # ). / (1/97", " " ! T 4 " ! ! ! < .3 " . /#$ 2" . # ) *).#.). . # 12/98). % " 9 ! . 3 $ ! , Internet. % ! " , /#$ Internet , % " . ( " GUNet. ; " " /#$ 9" 1 eclass.cs.teiher.gr " , ! " ! . % , ! /#$ ,(/(% " 2 ! " , . / GUNet e-Class " " Claroline. " " " , server ! < " ! , Claroline. 2 " 5.1 !" * * ! ( & "&Claroline $!, " , " . , " , 5.2 , . & , " , ! ! " 2 1 1 1 1 1 ! " " " " " " / "- ! ). . . " . . . + ! + !" 0 " 1 . (user interfaces) " ( " ! "&Claroline , ! , " " 42 (web browser). , , – ! PHP, " * server-side scripting, !. 1 2 " , MySQL, 1 ! ! " " MySQL, !" . 4. ( . ,( ) +" . " " , 2 3 " , " / ( ." ). – . , " " , , " ), " " "" ) . " , 2 : ! ". " " " +# " 0. / , ! / 0%/ " . "( ! 4 (# " , " , $$ -% " ( , 4 , " , video, . " " 5.4 / 2 / 0%/ ! " ( " ", .- " / ! " "- - ! "$ #& ) / 0"/ ! - " " , " , 2 " " PHP . 3. ( 4 . . " 2. - - " : " 1. - !. eclass ! / ! " Apache web server, Linux, Solaris, Windows, 2 ! + ! , " . 2 5.3 ' " !, / 0"/ / " 1): 43 . 4 " – 1 1. , 2. 6$$ 3. ! 4. +.& / 7. ( 9. " / " ) " 3, " " "2 « " ) ! » " % & 2 ! ) $ -% , "4 ( 3 , . " 4" % ) (forums) , ( " ! & , !% ( ! ). & . $ #& , . 8. 0 ). " , 3 6. 2 10. , . 5. " - 2 4. email , & . " ( " " . 0%/ &" ! 2 . 44 " , , – 11. '# 12. ! " ! . 4 (chatting) 2 *. . , µ % " " " ! , ! " , + ! !% " ( , , ! ! HTML scripts MySQL server, web server (Apache) 2 " " . $)$% 2 & (1st 2 . / , " (username, login) ! ! " . " ! web server , ! , 2 ! login-password (authentication). , - " " ! 2 ! . " . 5.7 ( $)$!% (# / 0" % " " " . % login " . : " " " (password). / (identification). % 2 ! login-password, , ! username, ! .% " , ! ,2 " ! % " "/ " .# 3–tier, , tier), "2 - 5.6 (MySQL), " ! 1 " (php ) WWW server. (web browser). ) ! " .! php (2nd tier). % " 1 , , " Client-Server. " 2 ! ", $ (# ( % µ" 2 . " 2 "). 5.5 ! " " ! ) " " - " 45 " (# " 2): " – : 2 % , ( 2 . , ! " " , 2 . 5.8 ( $)$!% 2), , , ! (# ! 0"$" % - " " (# " " 3): 3 % 2 2 ( " 2), 46 , – " , (.1 " , &), , 2 . ! 5.9 $#& %/ &$ + % "-! 0"$" % link " ! .# , .: , " (# " 4): 4 , % 3 " " % , . , , " " ! 4 . 4. 2 , , , " , .1 , , (# " 5), " " 2 47 . . / " – 5 ( (# " . 6$$ " " 6) , 6 3 % & , " " (# " . 5 ! 4 " 48 . 7), " – 7 ( !% & , ! - (# " 8), " " " " . " , ". - ! 2 " , ! " " . % " 2 ( " / 8 49 " , ). , – 3 $ -% 0%/ &, . " " " " " " , " , .# , (# " 9): 9 3 2 (# " / . 50 10), – 10 ( 11), $ #& (# " ! " 3 , ! , " .3 " ! ! 11 51 " . , – ( ! . (# " 3 & 12) " . - ! 2 12 ( +% (# " 4" % ) 2 2 . 13 3 2 / / .3 & $ #& 2 . (# " " 52 14) 13), – 14 ( 2 *. 2 ! " (# " 2 15), " 4 . 15 / , , video web browser ! " '# 4 . (# " 16). ( video video (plug-in). " 53 – 16 , # "/ $# ,& Menu. ( " " 0%/ - & web (# " ! " " . 17 54 17), , 2 – % 2 (# " (( $% .( , , -#(/ 2 " 4 " 2 18): 18 ( # 0"/ (# " ) " " " 19 55 19), – ( / 61 , & , . " ' %0 . 5.10 +# " %/ : . , &$ + % "-/ 0" % , - " , " (# " .5 20), 4 4 " " links , . / . 20 # , " (( $% 2 " -#(/ Menu " (# " 21): 56 4 .( – 21 , 2 ) # " / , " " . ' %0 $#& + % %/ " & " - ! ! " (# " ), . 5.11 # " " 0"/ " 22): .( 57 ! ! 2 , . " " – 22 , % " " $$ -% . " , ! 0"$" % , 3 " " , " (# " . % " (LDAP) ". % ". - 2 2 23-24-25): 58 ( ! . ) ! – 23 24 59 – 25 % " !, " " ’ " ! .& . % & " . - " " . (# " ") " 0"$" 3 , 3 ! " ( ./ 26) web, " 2 26 60 " . ) " " – # .% ! ! " " ) .# "# 4 !, ( ! " email ! " ( 0"/ )/ . , " .$ & 2 " ". " . / . " # , ! 4" " ") ! . " ! LDAP, " ( 4 e-class, (# " 27 61 27), 2 . – , «+ » " ". # «1 4 # " 3/ , , ». .$ & (# " ( 2 class ( 28), " ," ). , e- " ") " ( " 28 . .& 4% " " "# " " 4 . % " , 4 " 3 e-class. ) (username). 1 ! web (# " 2 , " 29): " .( " 62 , " . – 29 ( 61 " & . 0%!" 3 (admin). ,&+ % " , & + , (# " .& 2 30): (username). H " 30 (% H "/ ) ! 2 email " email 2 ( e-class, ! 63 (# " « 31), ! »). – 31 + (3 / # 3 / / 2 # , .$ & , " . " «1 32): " " ». 3 ." ». ( ! (# " 2 e-class. 5 «) " «) », .( 32 64 ! " " " " 4 " ! , " web . – %$ " $$ -% ( $! %&/ 0%/ 3 & 2 (# " , 33): e-class. - " " , .( " 2 33 ! " " / 0%/ & ( « (# " " " 4 . , . ». 3 " < " 2 2 ! 65 " " «Browse» .». % «# 34), , " " 2 , . – 2 , " " ( . " / " " , "% ! "( ) . " " . " userid) " usernames ! .. username " , 2, ! " " ! " " ( " - #& $ " . .1 2 "/ 3 2 e-class. ( e-Class (# " 35): Linux .% " ! 34 (" ). " , 2 " ! username " , , 2 , 2 FreeBSD. ( 66 " " ! " ! web , – 35 (" - #&$ " PHP ( 2 (# " 2" " PHP ( 2 e-Class. ) 36 67 , ! 36), " modules, – +# " * /. ) (phpMyAdmin) ) (# " phpMyAdmin ( " MySQL. 37), " 37 6( $+ &!2 &* "& /. ) 3 2 " ( 4 , ) . 38 68 (# " 38), – 6! e-class " H . ! 2 e-class 2 (# " 39), Apache, MySQL " PHP 39 Configuration file ( e-class " " (# " 40), e-class (config.php). % 2 40 69 2 " e-class. – ! ( " 2 " ! , " . 70 (# " e-class " 41), " " , – 41 $ -% M phpMyAdmin " / " , ) / 1, ) 2 "/ , , ! , ! " .) IP . % phpMyAdmin. (# " ! id 71 " 2 42) – 42 0. / $+ # ( 2 ! " e-class. (# " 43), e-class ! . 43 $+ # ( + % ! " 72 . – 6. 3 2 " , " " .: " " " . # " " , ! " , , " . 1 " 2 password . , ! " username 2 2 " , ! .# " , # " ! , " " " " " .( " . 2 " , 2 - " " .> " ", " ! " ! " 2 2 " " " ! 4 " , # . " ! . # " ! " " , " " " , ! , " " " ’" ! " " (bookmarks). 1 . 5 " " " " " / , " , " ! ! 2 " " " . % ! Internet Relay Chat (IRC) " .# , 2 4 " Internet ! ! " whiteboard , " " ! , " . # , " " " Web 2 ! " ! " . # , , " ! " . , . # " , 2 ! ! (voice chat) , " " .# ! 2" . " , " " " " , ! 2 , . , " " 2 " ! Web , : , " .) 2 " " " " " ". # " " , " " " ! , " ! . # " - " 2 " .1 , , " " ! " ! 73 , , " , – " " "" ! " ! - " .# , 2 . , " / ! , ! " / " . " , # 2 ! " 4 " ! . # ! ! , - ! , ! % " " " " , 2 ! " .1 " . " , , , " " .# / , , . " " , " " , " ! " " 2 , ". # ! 2 " , " " ! .# " , .: ! " , " - ! . . ! ! " " ! " " , ! . % , " . # " " " 2 " " , " ," " " 2 " .% " " " Internet Relay Chat (IRC) Internet ! " " .# " whiteboard , " ! " ! .# , , " " . " , Web " " " 2 " ! " . , , ! ! ! 4 , 2" " ! ! 2 " 4 " " " " , " 2 ! ! " Web " , ! , 2 " " " " " " 74 ". # , " – " " " ! , # , ! - " , , . # ! . ! - " " , " ! , " " " , " ! " . ," / , ! ! " / " . " , # ! " .# ! " 4 ! , ! ! - , . ! - , . ( ! ! ! " 4 " ! . # " " " " , " "" . 1 .: , " " " # " .# " ! , ! " .( 4 " " " " " , ! , " " " ! ! 2 " .) " " " " , , ! " .5 , " . " " , ! 2 " ! " ! ! ! ! " " . ! .5 " , . ! , /#$ , " " . " , , , " " " " 4 " . &’ , " ! " ! " , " . / , " ! 2" , ! . , ! . 2 " " 2 2 ! . .5 " " , , 75 " 4 – 2 . %! " , ) " , 4 " " ! " ! ! ! 4 " . 5 ! .! 2" , 2" " , .( . # " " " ! " " , , ! " " , " , " ! ! " " , ! . 3 " " " " ! ! ! .& ! " , " " " .( ! ! " 2 , # ! 9" ! . @! «) = " ! 76 ! " + . "» " – 7. ' ' « ! «) / «* «# «/ ) . > «%! # «3 » / GUNET. ! " GUNET2/TELEDU. / » ) 3 » ( 3 » ,!) . " " - . ) " ) . / #.3.)., . e-learning. / » ) " # : " " / . ") ( % % 1 # # # «) «1 « / « / «- » / .) . 1 / . - " " " * " , » ) . . . . / » " GUNET. » Andrew S.Tanenbaum. * / IP 1 . * » " ) . * / IP 1 . * » " ) . ! Internet» ) . * / » " ! # " « ) . « # # » " ) . http://whatis.techtarget.com http://www.teleteaching.gr http://odl.uoc.gr http://www.auth.gr http://www.tcom.auth.gr http://www.ntua.gr http://www.res-auter.teipir.gr/rescenter_gr/body_teleconference_room.html http://www.ellak.gr http:// www.gunet.gr http://www.eurocom.gr/corp/index.html http://www.databeam.com/applications/semco.html http://www.databeam.com/applications /siemens.html http://www.in.gr/Articles/Article.asp?ArticleId=67258&CurrentTopId=671 68&IssueTitle=RAM+144 77 ! %! " – http://ru6.cti.gr/broadband/el/iliko.php http://www.mozilla-europe.org/el/about/faq http://www.foruminc.com http://virtual-u.cs.sfu.ca http://198.114.68.60 http://www.databeam.com http://www.centra.com http://homebrew1.cs.ubc.ca/webct/ http://www.softarc.com http://www.wbtsystems.com/topclass http://www.teamwave.com 78 – 1. 7 1.1 ((" !, !, 1998 1 " ? " ) " # %/ ) # " , ( #$) ! 1 " ! . / # , (#. .).), 20 ") , " 9 1 " , 3 [) ] . ( ! # . " # " " " ! " ( " ) ! ! (-.%.%.). / , 12 .4 ( .# # % " " , " 2 % 23 1.2 0 !, ! !, % ! , 0" 3 % ) " " ! ) " #$ . <" ! " "$ "# 4 ) ) " /#$ " 1 4 ! e-mail " " . # , " # # " .- 79 " " " ! ! 2 , " . " 2 ! 1 : " ) " ! $)$!, " " " " ) # . / < " 1.3 " 3% ! /.#.$. " 10%. 4 ! ) ./ " ./ " " " (/* ! 6 5 5 9 .% , ! , , , ! ! ! % " # %/ , # 1 # " ) 4 " 5 (Masters), 1 ( .#.). ( .#. " .#.$. " " . , " , 2003-2004 ! " , " #. .). - .% " 1 ! " " ) 5 " . – ,- ! # ": " ( 2 " !, . $ !% / 0" ": " ! !% 1": ! (primary) ISDN ! 1.4 %/ % "& $6$&#.#$ # " * ) " " ) " # “$6$&#.#$ ” , WWW, " / ) ! " " (# ) .% ) !) ! . % " $6$&#.#$ ! ! " ! ( , ) .( ( ) " , $ " 2 ). 3 ! ! video-conferencing), % ! ! ./ WWW). ) 2 # , " ( ! " (project assignment teaching) 2 " ! ’ "4 ( ! . " ! " . #)# # ) WWW " , " ( 2" ! , (" " . 2" ! # " ) " ) " , " " ! . & ! $6$&#.#$ 2 ! WebCT. ! 1.5 .( %/ % , "1 ISDN" ISDN. ) / .). . ! # ! ! 3 MCU) ! ( #!"& 2 " % ) ! 4 " . ( " " " " " . ( " 3 , , " " ( ), " .- ", " , 4 ( 4 " ! (Multipoint Control Unit, " , " ! . - ! , " , 40 ! & 3 (.*. 80 .). . 4 ISDN 2 " / , ", 6 . " / " – ISDN " : 1 1 1 1 1 1 " " " " " " ! . . . ! Picture-In-Picture. " , " " " .3 " " " " " " - # ( ( to-talk, ) " # ! .- " , : ( " " . " ! ! " . " / - , 4 512 bps (30 frames/sec) " (.320 /.120. / " ! " VTEL PTZ (Pan-Tilt-Zoom). . " . . . " . ! " " push- ! . ". . Internet. / / " " 2, : . - : ( . . PDF ! URL. , , " " " " " ) on-line, . URL. ! . 5 " " " " " " ! " " ( " ! !. 5 " 2 ") . ( " (client-server). " ! 2. " .- , " " " " 81 2 . , – 3 " : ! web ! " ( " " ./ " . 2 (download) " " 2 " " ! # On-line 5 ) . " ! " , : 2 " .! " " . ! . " " (certificates), ! (SSL). 1 " - ,* ( Secure Sockets Layer " , " 1.6 0 !, . " ! . + # / ) ! " 2 9 , . / " . ( " " ! " 1999 #.3.). 4 " 4 , " ! " # ! ! " # 9 5 " () #.3.). ) * " .( ! " " : ISDN Internet (H.323) ! !. #3) $ # 4 " , ! (Internet) #1#/ - GRNET. " Internet . video server Internet. / " " !-# !1 " " ) " ! + " , " ! ) 3 &%)”, !% #3). / 9 !, ’ " " ! ! , " " " " 3 .- " (distance learning) , " ! !% & / / / " Internet " " ! ! # + 3 / “# ! #)# # , .# # ) " " ") . ) " , 4 " " " " / (distance education) " ./ ! 82 .( ! , " , " ! / " " " – / " " " , o " " , ! 2 " " " ( . . Internet " " ). 1.7 ( / 4 " 4 # ! ( " 3 ! 1998 ) " * , )" ). ( ( 4 ! -Internet ( camera, video, T.V., !) - "1 ". ) " , video) " ISDN ( 5 1 (/* , .( /.#.$ ) ! ISDN / , " " " " -/ (Distance Education Teleducation). / /.#.$ ) ) ! / $ ! / # + : # 9" ) " "European Communication and Co-operative Learning E.C.C.L", / , ! " " # 9 ) Video4 . # 9 ) TEMPUS: "Flexible Learning and Continuing Education FLACE" "Telematics and Multimedia within the Information Society - TEMIS". # 9" ) " SOCRATES: "Quality Issues on Education". / , /.#.$ ) ) / #.).#. .#. . / " 1 # , . ( " , " "$ / ) " *).#.). ! ", " " " # / 4 / ( 4 , " 83 - - " ! ! ) ( Internet " - . "# ! Video! " " - - ). / ! . 4 ). " " , – 2. 2.1 CRAFT (Craft Adaptation to Fast changing Technology) ' ! . / CRAFT LEONARDO DA VINCI, $$.1.1. " " . % " ! ! CRAFT ! # , # CRAFT " " ! . , ! ! " . % 5 + " “1$ 0-&-%” . /#I / 1. / . 2. / " - / " " " # 9" ! % ! ()-% $+-), "% & , ! 2 " , # 9 ! (CRAFT Network), ! ! ! . Multimedia " " % % " ! ! , " " " CD-ROM Internet, (distance learning) " . 9 " . ! " 2 " " " ) . 3 ! # (+ " ! : , / . 2 2" : ! # ) + # ) # , PRISMA #)# % , 9 # , (1 (+ * ,) ,% ,) : " ). ,# ). ). 2.2 Eurocom Expertise A.E. ( ! 1995, Teleconsultant A.E. H " % * # ) " " $./, (4) . / . / 84 -3 : % . # " Eurofact , – ,1 ) ) # ) " ,* (Multimedia Applications). Internet/Intranet. # 1 (1 # , ). ( " " 50 , ! # 8 ) , .3 , " " ERICSSON % , -/#, Alpha / 2 ) , PANAFON, STET, # / , # , ASEA BROWN BOVERI A.E., / # . . % , ! " : #RICSSON (% ), TELECOM EIREAN ($ ), NEPOSTEL (), FYCSA ($ ), CARSA ($ ), SUN Microsystems. ( ! , # ! #$/ " ( & Web Sites INTERNATIONAL LIFE PANAVOX FLASH/SPORTNEWS Intralot PANAFON " Eurocom Expertise SA (corporate site) KNORR Bestfoods Hellas ## ( ) 9 " * -/# CPC Hellas) $)$.& ( /. ) Intralot - # ISDN ( ) ATM ( ) SDH ( ) Radiotherapy ( ) Biomedical Signal & Image Processing ( lpha / 2 ) (# -ROS SOLUTIONS ( 9 " $./, -3 (# Bakersfield Californian ) ) ASTROLABE@TELCO) Cebit 98) “Bakersfield Californian” ( % " . ( ! .3 " " " " " 55.000 80.000 SoftArc’s FirstClass Intranet ! " " , ! " " " “Bakersfield Californian”. 1 ! " 2 " " ! . : " ". 8 85 SoftArc’s FirstClass Intranet ! – " ! .* 4 " , " 2 " " ./ , ’" " " ! . 2 2.3 Boeing !% " # - ! " ", " .& " " Boeing NetMeeting , Microsoft " . / ! " " " ! " !, ! " ! , , !. # " ! ! " " .: 4 " " . 2.4 Dow Chemical Co. , % " - 9 " " ! " ! & . " " !, " " WBT Systems Inc " 600.000 " " ! " " .) ! ! " " . , Dow Chemical Co. 25000 2 . , , . / , 2.5 Ford ( Ford Motor Company " . 2 " Mazda Car Company. Ford NetMeeting 2" 2" ! ! Aston Martin, Jaguar, Lincoln Hertz, ! " Mercury. # 33% , " Ford .( ", 2 .& " FSIC (Ford Systems Integration Center). / FSIC, Microsoft, " , "4 " " " . # , ! " ! " ! (electronic whiteboard) (application sharing). 2.6 Nissan / Ford ! Nissan. ( Nissan 2 20 " ! 4 4 . 86 AT&T – . * / !, ! . ( 4 "4 " " " " " , ! 4 " 4 - . " ! " " 4 , . " 4 , . 2.7 Owens-Corning ( Owens Corning ! fiberglass. 5 " " Owens Corning 4 , 4 , " " . " ! " ’ " . 1 Toledo ! 18.000 " 30 Ohio. : ! 3 2 ! " - . " 4 . : 2.8 PrimeSource ( PrimeSource Corp 9 " " ! .( 4 " , ) ! ! ! 500 " " " ! " " .: " , ! . ( . ! 4 9 " " ! " " . 1 " , " . " 2.9 SEMCO/McDonnell Douglas SEMCO (Systems Engineering and Management Company), , " ! ! , " " . / " 4 " (.). McDonnell Douglas Long Beach " . : " , " " . & & " " , . ) " 4 - " , " , .5 , video , " ! " DataBeam. / DataBeam " McDonnell Douglas ! , SEMCO, ! " . 1 4 " . . . ( SEMCO ! " " 10.000 87 , ! 4 , – 2 " . DataBeam SEMCO " ./ " " . SEMCO ! " 600.000 2 40-50 " " , ! FarSite " " , 4 " 2 10 " " . " 2.10 Siemens ( (Business Communications Systems) ! % " .) , " 1000 ( ! 2" , # Siemens, ! " 50 " . %’ " # , 2 2" . + ) ! , " " 9 " ! 2 " " " " ! " 2" Siemens. % , Siemens ! Siemens Virtual University (# ") Siemens), " " ’ " 2" ! Intranet. & Siemens Virtual University, Siemens ! 100 neT.120 Conference Server " DataBeam. " " 2" . 3 ! ! 100 2" ! ! , neT.120 ! 500 2" " " " " " .Siemens Virtual University ! " , “ ” (virtual) 2000 " 2" . + , " , online " , Siemens (Siemens Business Communications) 105.000 " ! 2 . ) , 2" 2" ! " " " ! " " ! " . ( Siemens 2 DataBeam ! online " 2 ! . 5 , Siemens ! Learning Server " Databeam " ’ " " " ! " " ./ , 2 " Siemens " DataBeam’s Distance Learning Advisory Council. 2.11 United Technologies Corporation ( UTC (United Technologies Corporation) $21.1 ! . 9 " 4 . 0" " ! .5 Boston University " University ! " " 170.000 , , " UTC " " 2 4 ! 1991 . UTC " , " . 88 " Boston ’ " . 2 – " UTC " Boston University " Columbia University, Massachusetts Institute of Technology, Rensselaer Polytechnic Institute, Stanford University, University of Connecticut University of Maryland. % , 89 – 3. 8 3.1 FORUM / FORUM 4 2 . ) Texas A&M University , FORUM " " !. / FORUM " ! HTML (WWW) Laredo. / " " , " ! , on-line (3.0) FORUM ! " Internet Web browsers. Novell network server " PC/Windows. / FORUM " : 5 : 1. 1 " 2 1 ! . 2. ! ! , " " " . 3. 2 , : % (collaborator): " " % (participant): " " . ) (observer): " " . 1 " " . 3 " file server. A ! 4 . # " " ," 2 " 4 . * 4 . 1 " (link) " : 1. > . 2. # ! 4 . 3. % . 4. % WEB site. 1 " . (Windows). ( " , " . ! " " 3.2 Virtual-U / Virtual-U server, " " To Virtual-U " ( !* ( * ./ VGroups Conferencing System: ! " " . ! "4 . ", WWW. ! " Virtual-U * 2 ! , ! 90 " : . - " 2 4 – Course Structuring Tools: ! " . GradeBook: # . ) " ". * ! : " " ! " " Pass/Fail " . on-line. . ! # System Administration Tools: 1 " " , / , . , " ! & 2 ) . 3.3 LearningSpace / LearningSpace Lotus Notes , . / LearningSpace ! Lotus Domino server Server Lotus Domino. / LearningSpace 3 3 3 3 3 * 2 ) , Chat ! Audio Video Whiteboard. : . " . . . . " attachment 4 . : " - 1 " ! % 2 2 2 Lotus Notes Lotus Notes Web ! !. ) , (email, BBS, Newsgroups) ! " " ! " (chat, Whiteboard) " . URL link. . . 3.4 Learning Server - DataBeam Learning Server interactive / Learning Server !4 " ! " server , " " " DataBeam ( ’ " Server streaming video " Real Media 91 Internet " Intranets. Lotus/IBM), . # , Web Server. / Learning " VDOnet. – - Learning Server 1 " 1 " 1 " 1 " 1 " 1 " ) 1 * : " . . 4 " . " . . . " Whiteboard " ! ! . " “meet me”, " " . " " " , server. " server , “ ! 4. ( ! ” " " " ! ! ! server. - " " ( ) " o .) . " . % ! ! . - Learning Server ! ! 2 . ) 2 2 " " " , 2 " ! !. 3.5 Symposium / Symposium " - / Symposium 1 " (WWW) 1 " 1 * 2 1 1 ) " Web, " " . / Symposium " Web browsers. " " ! : " " ! ! " ! . " . ! . ! . ! . " ! " " , . " " # 4. Quiz , . 3.6 Web-CT / Web-CT Columbia . " ! " " " # * , Web. 3 . / 92 Web-CT ) 2 British " – Web browsers. ) 4 To Web-CT % " : ( ! ) " ! " " . " " : " 1 click ! . click " " . " " 3 " . " , ! . , 3 1 1 " . " – # , " " . 1 " . " ! : " . ! " . , . 3 2 ! ! ! ! " 2 . 3 ! " : / * 5 1 3 $ $ . " 2 4 ! . ! ( .# ,) , 2 . ! : " ,, " . % video). " :# ,1 ,6 2 ,& , ,& ,$ , 3.7 First Class/Learn Link / First Class " Class, First Class server-client (e-mail), 2 (remote access) , / First Class 3 ! , " discussion) " . / First " Web Browsers. / " Open University . (threaded : " " " Development (RAD) Basic) on line * ! . 3 ! , chats, chat rooms Basic .# ( ! ! . " " on line 93 " . Rapid Application " " – & " : " . 1 3 ! 4 , # 2 ! ( # * * 1 ) " : " " . 2 2 file attach. . " (WWW links). " " server " " login Windows Desktop 4 . 2 " ! .) " guest. / " ! client client setting, ". : " register user , : browser , . " - / ! . " ( " . " server, . " ! , server ! " ,1 ,$ " , chat, " " ! ,& 2 ,. 2 " . % 3.8 TopClass / TopClass server , " " " Internet " LAN. / TopClass Web Browsers. / TopClass . / TopClass " : Web, 4. % . 5 1 ) 3 . . " . on-line ! . - ! ! # ( wizard * TopClass Player: & " " . , " " " " ! ! ). " . ! , ! " CD 94 " off–line ( ). / : " – TopClass Assistants: # Word 97, Power Point " server. " 3.9 TeamWave / TeamWave Workplace " ! 2 " 4 . / ! client-server , " ! " ! .+ " , ! " " . ) " , meetings, "- ( ! , " . " 2 whiteboard. - 2" , project 2 " 2 , interactive " " . # whiteboard. / , " " 2" whiteboard. 2" TeamWave ./ " ! : " , ! brainstromer " , , , link , ! file viewer, " 4 , newsgroups, " ! ! , " slide, whiteboard, link " " " Web browser. , ! Microsoft PowerPoint " , . 4 . 4 3.10 ILIAS ( ILIAS ! " " " " " . : ! ! 9 " . " " , 3.11 MANHATTAN ( " , MANHATTAN 2 " " , " 95 , , " ! 2 – " " , . " " 3.12 Claroline ( Claroline " . 1 . ) ! " , " 9 . ) . " ! . $ 3.13 e-education ( " " .% ! e-education . , " " " " 96 " " , – 4. ' 4.1 ' " /. ) $ . / 0"/ " 41 ( ) ! Access / access : access_id access_title Accueil / accueil : id rubrique lien image visible admin address Agenda / agenda : id titre contenu hour lasting Assignment_submit / assignment_submit : id uid assignment_id submissio_date submissio_ip file_path file_name comments grade grade_comments 97 ! . localhost. – grade_submission_date grade_submission_ip group_id Assignments / assignments : id title description comments deadline submission_date active secret_directory group_submission Banlist / banlist : ban_id ban_userid ban_ip ban_start ban_end ban_time_type Catagories / catagories : cat_id cat_title cat_order Config / config : config_id sitename allow_html allow_bbcode allow_sig allow_namechange 98 – admin_passwd selected posts_per_page hot_threshold topics_per_page allow_theme_create override_themes email_sig email_from default_lang Course_description / course_description : id title content update Disallow / disallow : disallow_id disallow_username Document / document : ip path visibility comment Exercise_question / exercise_question : question_id exercise_id Exercises / exercises : id titre description type 99 – random active Forum_access / forum_access : forum_id user_id can_post Forum_mods / forum_mods : forum_id user_id Forums / forums : forum_id forum_name forum_desc forum_access forum_moderator forum_topics forum_posts forum_last_post_id cat_id forum_type Group_properties / group_properties : id self_registration private forum document wiki agenda Headermetafooter / headermetafooter : header meta footer 100 – Introduction / introduction : id texte_intro Liens / liens : id url titre description Liste_domaines / liste_domaines : id domaine description Mc_scoring / mc_scoring : id choice_count false_count score Pages / pages : id url titre description Posts / posts : post_id topic_id forum_id poster_id post time poster_ip nom prenom 101 – Posts_text / posts_text : post_id post_text Priv_msgs / priv_msgs : msg_id from_userid to_userid msg_time poster_ip msg_status msg_text Questions / questions : id question description ponderation q_position type Ranks / ranks : rank_id rank_title rank_min rank_max rank_special rank_image Reponses / responses : id question_id reponse correct comment ponderation 102 – r-position Sessions / sessions : sess_id user_id start_time remote_ip Stat_accueil / stat_accueil : id request host address agent date referer country provider os wb Student_group / student_group : id name description tutor forumId maxStudent secretDirectory Themes / themes : theme_id thene_name bgcolor textcolor color1 color2 103 – table_bgcolor header_image newtopic_image reply_image linkcolor vlinkcolor theme_default fontface fontsize1 fontsize2 fontsize3 fontsize4 tablewidth replylocked_image Topics / topics : topic_id topic_title topic_poster topic_time topic_views topic_replies topic_last post_id forum_id topic_status topic_notify nom prenom User_group / user_group : id user team status role 104 – Users / users : user_id username user_regdate user_password user_email user_icq user_website user_occ user_from user_intrest user_sig user_viewemail user_theme user_aim user_yim user_msnm user_posts user_attachsig user_desmile user_html user_bbcode user_rank user_level user_lang user_actKey user_newpasswd Video / video : id url titre description Whosonline / whosonline : id 105 – ip name count date username forum Words / words : word_id word replacement Work / work : id url titre description auteurs active accepted Work_student / work_student : work_id uname 106 – 4.2 ' " /. ) $ eclass eclass ( ) " 16 ! Admin / admin : idUser Annonces / annonces : id contenu temps code_cours ordre Cours / cours : cours_id code languageCourse intitule description aculte visible cahier_charges scoreShow titulaires fake_code departmentUrlName departmentUrl versionDb versionClaro Cours_faculte / cours_faculte : id faculte code 107 ! . localhost. – Cours_user / cours_user : code_cours user_id statut role team tutor Faculte / faculte : id code name number generator Institution / institution : inst_id nom ldapserver basedn Loginout / loginout : idLog id_user ip when action Pma_bookmark / pma_bookmark : id dbase user label query 108 – Pma_column_comments / pma_column_comments : id db_name table_name column_name comment Pma_pdf_pages / pma_pdf_pages : db_name page_nr page_descr Pma_relation / pma_relation : master_db master_table master_field foreign_db foreign_table foreign_field Pma_table_coords / pma_table_coords : db_name table_name pdf_page_number x y Pma_table_info / pma_table_info : db_name table_name display_field Prof_request / prof_request : id profname profsurname 109 – profuname profemail proftmima profcomm status date_open date_closed comment User / user : user_id nom prenom username password email statut phone department inst_id am 110 – 4.3 ' " /. ) $ " Claroline Claroline ( ) " 12 ! Admin / admin : idUser Cours / cours : cours_id code directory dbName languageCourse intitule description faculte visible cahier_charges scoreShow titulaires fake_code departmentUrlName departmentUrl diskQuota versionDb versionClaro lastVisit lastEdit creationDate expirationDate Cours_user / cours_user : code_cours user_id status role team 111 ! localhost. – tutor Faculte / faculte : id code name number Pma_bookmark / pma_bookmark : id dbase user label query Pma_column_comments / pma_column_comments : id db_name table_name column_name comment Pma_pdf_pages / pdf_pages : db_name page_nr page_descr Pma_relation / pma_relation : master_db master_table master_field foreign_db foreign_table foreign_field 112 – Pma_table_coords / pma_table_coords : db_name table_name pdf_page_number x y Pma_table_info / pma_table_info : db_name table_name display_field Fodo / fodo : id contenu temps auteur email priority type cible statut assignTo showToUsers User / user : user_id nom prenom username password email statut officialCode phoneNumber 113 – pictureUri creatorId 114 – 5. 8 E-learning: "( ! # ": " (! !% / 0" ": "( ! # " 1 / ! /. " ( , 2$+ " "( ! # ": 2$+ " "( ! # ": Newsgroups: * ! . ,- ! # ": , ). $ !% / 0" ": . . ! . 2 ! 0/, (self-paced training): , ). , , ! " " " . " . ! ! ! ( " 2 . 2 , 2 , ! . ! !% 1": " " . ICT (Information and Communication Technologies): . In-service training: . "( / !%: " , . Cost effectiveness: " " . Interactive ,$ // : " , ! " . ! (# : ! " ( , ). CBT (Computer Based Training): e-learning. ) " 2 (/* ! ! .5 9 ! .) " . ! " . / , /" ! # ": ! " , ! , audio / video conference. Audio conference: – " " . Video conference: – " . Collaborative: 2" . LMS (Learning Management System): ! ! Discussion forum: 2 .5 " , " . Customization: . Profile: % Windows, profile 2 " " , 115 , " " " !. 4 ./ ! ./ – " " profile PHP: . , , " 2 " ! ! !, ! web , ! Web browser: " . Server-side scripting: . MySQL: . Apache web server: UNIX. AICC (Aviation Industry CBT Committee): . ! B , " CBT AGR (AICC Guidelines and Recommendations): IMS Global Learning Consortium: , .% . AICC. " " " . XML (eXtensible Markup Language): HTML " " .# . # . ! HTML 9 " ! .% " " ! " . SCORM (Sharable Content Object Reference Model): ! .# " ! . ADL (Advanced Destributed Learning): " , 9" " " .# SCORM. WWW (World Wide Web): " ! Internet. + " , Web Internet. " , " " " Internet. % # ) " $ ". User interface: " ! . UNIX: " ! Web Servers. # Internet. Ftp (File Transfer Protocol): " . " (FTP Clients) "download" Internet . GIF: " . Mpeg: 1 ! ! ) , 2 " ! " ., MPEG video . Browsers: ! ! . HTTP (Hypertext Transfer Protocol): " . # " 1 (world wide web-www). ) , ! ! browsers servers ! ! . Gopher: " " ! Gopher Minnesota, " " " 116 – Golden Gophers. ) 2 $ " PostScript: 2 " " ! " . URL (Universal Resource Locator): " " . Server: " , ! " " , HTML. Web: . Hyperlink: , $ ! " " . " " " " " .5 Web Server . 3 2 . .# " (Clients) , , " " . % " ! . HTML (Hypertext Markup Language): ! Web, " " html, 2 2 " browsers. DNS (Domain Name System): ! Internet. % Web Server, domain names ! .5 , . domain name www.arbomedia.gr ! ! 000.00.00.0. - DNS / . POP3 (Post Office Protocol-3): "" 2 " e-mail servers 2 mail. SMTP (Simple Mail Transfer Protocol): " ! (e-mail). WAIS (Wide Area Information Servers): ! ! , " ! , ! " " WAIS. Plugin: " , " " Web Browser. / " " " Internet Web Browser. - Web Browsers « » " plug ins " . Flash, Real Audio/Video, Shockwave . MIME (Multi-Purpose Internet Mail Extensions): ! " ! ! " : , , " , " ASCII 2 " " , " (SMTP). DLL (Dynamic Link Library): « » " . Persistent connection: ! . Pipelining: pipeline " . Pipelining pipeline. 117 – Cache: # " " Web IP address: ! . + " .& " " ! , " . ! ! " Internet. 3 ! IP . 290.54.123.55. 5 0-255 $, ! 4 , $, ! ! ! , " " Web Server (proxy server). IP address preservation : ip ! . TCP (Transmission Control Protocol): Internet standard 2 " , ! ! ! ! " ! .# , , " (bit rate) ! " " . / TCP ! " . Basic Authentication Scheme: " " . Digest Authentication Scheme: % " . Content Negotiation: , " , ! , . Nntp (Network News Transfer Protocol): " , « » (news) Usenet. Telnet: Internet, ! " Internet. Host: " .) " server. 6 ! " . Port: ! . Path: " . Searchpart: 2 . SGML (Standard Generalized Markup Language): . HEAD: " " . BODY: . DHTML: " web . CSS (Cascading Style Sheets), DOM (Document Object Model), Data Binding: ! DHTML. Netscape Navigator, Internet Explorer: ! . Tag: 3 HTML 2 " ! < >. / tags Web «View Source» " menu «View», Web Browser. 5 , HTML " Web Site. Markup language: . 118 – World Wide Web Consortium (W3C): " $ ! " ! 9 " WWW ! . Working Group: . Proxy server: 2 " ! , , " .5 proxy server " ! 2 " " " " firewall ! " " . CGI (Common Getaway Interface): / " / " Web Servers , . 2 2 . / CGI ! Web Pages ! , 2 . SSI (Server Side Include): ( , « » ) HTML ! ! . Modules: , " . API (Applications Programmers Interface): ! . Documentation: . DBMS (DataBase Management System): ! database manager. # " " " . Log + # : ! " Web Site. " log files, (Log Analyzers), ! " Site, ! IP ,o " , Web Browser , " , 4 .% , log files ! " 4 " . Microsoft Frontpage: " , " Web . FrontPage Explorer: 3 FrontPage Webs . FrontPage Editor: FrontPage Web. Login name: " 4 ! . Password: " ! " " " . Bookmark: % " " Web Browser ! Internet " ! .0 Favorite. ( ). Shell scripts, Perl programs, Compiled Fortran, Pascal, C, Java: !. Web Master: ! " online , " website Web Server. 0 Administrator. Cookies: ! 2 " " " . + , cookie " site. 119 – Parser: ( , " , ) , , , " , ! 2 ( ), ! ( ), parser . server , ! ). 5 " " ( , " " " " " Command-line scripting: browser " php parser. Task Scheduler: . Client-side GUI: ! . Php-GTK: " php ! . HP-UX, Solaris, OpenBSD, Microsoft Windows, Mac OS X, RISC OS: . Microsoft Internet Information Server, Personal Web Server, Netscape and iPlanet servers, Oreilly Website Pro server, Caudium , Xitami, OmniHTTPd: . Processor: . PDF + # : " acrobat reader " . Flash: ) " / Macromedia, ! " interactive Web Site " Banner Button. / Flash ! ! , 2 " . 1 " , " ( . e-shop). Server-side cache: . XHTML (Extensible Hypertext Markup Language): ! HTML 4.0 XML. ODBC (Open DataBase Connection Standard): " ! (API) " . 3 ODBC " " Access, dBase, DB2, Excel, Text. LDAP (Lightweight Directory Access Protocol): " ! " , " , " " . IMAP (Interactive Mail Access Protocol): " " " . SNMP (Simple Network Management Protocol): " " ! . Socket: " " .- 2 « ! ». POSIX (Portable Operating System Interface): ! " " ! Unix. SAX , DOT: " php. XSLT (XSL Transformations): " ( ) " XML XML . 120 – RC (Internet Relay Chat): ( 2 online Chat " 3-tier architecture: Components: " " Database tier: . Application server tier: Remote client: . Client tier: . Thin client: " Rich client: ! " ActiveX: ) " ( ) " , . Internet, " .% , . . 2 . HTML. 32-bit Windows. Microsoft Web. ActiveX component: " " ActiveX ( " Windows Macintosh). User screen: " . Leased Line, Dialup, Internet Connection: . TCP/IP (Transmission Control Protocol/ Internet Protocol): " , ! ! Internet. Server-centric: # µ 3-tier. Visual Basic: !. Load Balancing: " " . Administrator: ! 4 " , , ! . Mainframe: " " , " " $ 3 Fortune 1000 ! !. Gateway server: ! .3 ! " hardware ( !) software ( !) ! ! ! " , 2 . ANSI-SQL: " ! ! ! ! . Compiler: . Beta .! ": # / " " " " . " beta " , ! . ASP (Active Server Pages): " HTML, scripts 4 " WWW . Asynchronous Transfer Mode (ATM): 3 ! cells. To /3 interface B-ISDN. Backbone: / " " ! ! . Broadband Integrated Services Digital Network (B-ISDN): & " " 4 ! bandwidth 2 " ! 4 " . 121 – Broadcast: % " " " ! .) , LAN. # " " multicasting. Electronic mail (E-mail): " ! ( , , ), " " ! (text-mail). ISDN (Integrated Services Digital Network): 3 WAN " 4 " . * ! " ISDN, narrowband-ISDN (.-ISDN) broadband-ISDN ( -ISDN BISDN). Java: H Java (object oriented) " " Sun Microsystems $ ! 1995. ( Java ! " ! JavaScript: scripts. / scripts HTML JavaScript HTML . LDAP (Lightweight Directory Access Protocol): " 2 " . Local Area Network (LAN): 1! " * . MBONE: ! ‘Virtual Internet backbone for Multicast IP’ Multicast Backbone. # " IP multicast Internet. / MBONE multicast ", " " " nv, vat, IVS sd. MCU (Multipoint Control Unit): # 4 . Real Time Transport Protocol (RTP): / RTP " IETF " " (end-to-end) (real-time) Internet. RTP Control Protocol (RTCP): / RTCP 2 " " . % ! " ! " . Teleconferencing: ! ! " " . Unicast: ( " ! ! " client 2 . User Agent (U ): % e-mail 2 ! " 4, , , 4 . USENET: Internet, (newsgroups). Whiteboarding: whiteboarding ! " « . " " 2 4 " " " . / ! 2 " " . - 122 » – " . " " " X.400: / X.400 ! ITU " ! . X.500: ! CCITT " . ITU (International Telecommunication Union): # " ( # " PNOs PTOs ! " . ( " , ITU-R ITU-TS ( " CCITT) . ) ITU ! ITU-R601, H.261, G.711 ATM. CCITT: ) " & ! " Comite Consultatif International de Telegraphique et Telephonique " ITU (International Telecommunication Union) . Multicast: ( " stream ! " " clients 2 . To multicast unicast stream client 2 , broadcast stream " clients . / multicasting " bandwidth streams streams clients 2 . Perl: & ! ! !, ! " Larry Wall ! World Wide Web, text processing, Internet, " , portable easily-developed ! . Python: # interpreted, object-oriented ! " Perl, ! " 123 – i