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Web Browsers & Authoring Tools

Web Browsers & Authoring Tools. ICE0534 Jonggun Gim. Objectives. To Understand what Browsers Do and will Do To Know Technologies supported by different Browsers To understand the importance of standardization of authoring tools. Table of Contents. Requirements of a Web Browser

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Web Browsers & Authoring Tools

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  1. Web Browsers & Authoring Tools ICE0534 Jonggun Gim

  2. Objectives • To Understand what Browsers Do and will Do • To Know Technologies supported by different Browsers • To understand the importance of standardization of authoring tools

  3. Table of Contents • Requirements of a Web Browser • History of Web Browsers • What is Mozilla? • Features of Web Browsers • Popular Browsers • Future of Web and Standardization • Types of Web authoring tools • Authoring Tools Accessibility Guidelines

  4. Requirements of a Web Browser • Software that gives a user access to the World Wide Web • Communicates in HTTP • File Formats are generally in HTML (4.0.1) • Supports other file types (native or plugged in)

  5. History - 1 • WorldWideWeb: Tim Berners-Lee, 1990-12-25, on NeXT • Libwww: 1992, C language • ViolaWWW: 1992, Pei Wei, Graphics, Applets • Samba: 1992, first browser for Mac • Mosaic: 1993-02, NCSA, X-Windows • Ported to Mac • Sound, Video, Forms, Bookmarks, History

  6. History - 2 • Arena: 93, HP, Positioning Tables and Graphics • Lynx: 93, Character Mode • Cello: Summer 93, First Browser on PC • Opera: 94, Telenor, Norway • Navipress: Feb-94, Incorporated editor

  7. History - 3 • Mozilla: Oct-94, First Commercial Browser • IE: Aug-23-95, with Windows 95 • 1996: 1/3 market share • http://browsers.evolt.org/ : archives 120+ web browsers

  8. Mozilla • Netscape(1.0)’s code engine • Mozilla Project: 1998, AOL, Netscape engine - Netscape 5, code engine: Gecko • Mozilla Foundation: 2003, separated from AOL • Products • Mozilla: the application suites • Firefox: stand alone browser • Thunderbird: email and newsgroup client • Camino: web browser for Mac • Composer: web editor

  9. Usability Features • Bookmark Management - import/export • Download Management • History - Private Browsing of Safari • Tabbed Windows • Pop-up Blocking • Incremental Finding • Off-Line Browsing • Printing / Saving / Caching / Text Encoding

  10. Web Technologies Supported • Java Applet - I, G, S, O • CSS - IE partially supports • JavaScript - I, G, S, O • XSLT - I, G, S • XHTML - G, S, O • MathML - G • RSS (Rich Site Summary) - G, S, O • *Active X - I

  11. Protocols Supported • Email • FTP • NNTP • SSL (Secure Socket Layer) -- I, G, S, O • IDN (Internationalized Domain Name) - G, S, O • Data:URL - G, S, O

  12. Popular Browsers - 1 • Internet Explorer • 60% market share • Windows, Mac OS • 90+ known security vulnerabilities • Incompliance to Standards • Good Performance on Windows • Gecko - Netscape, Camino, Firefox • Common implementation on Windows, Mac, Linux, Unix and BSD • Slower than IE, Opera, and Safari • Open Source

  13. Popular Browsers - 2 • Safari • Conform to Standards - RSS • Excellent Usability and Support • Fastest on Mac • Opera • Fastest on Windows • Most Loyal to standards

  14. Future of Web (As W3C sees) • Web For Everyone • Web Accessibility, Internationalization, Device Independence • Web On Everything • Knowledge Base • Trust and Confidence • http://www.w3.org/Consortium/mission

  15. Standardization Process • W3C receives a Submission • W3C publishes a Note • W3C creates a Working Group • W3C publishes a Working Draft • W3C publishes a Candidate Recommendation • W3C publishes a Proposed Recommendation • W3C publishes a Recommendation

  16. Troubled Web Interoperability • Incompliance to HTTP • Incompliance to HTML - IE • Un-standardized Plug-Ins • Active X • Internet Banking

  17. Types of Web Authoring Tools • HTML authoring tool -text editor • Web managing Tool - FrontPage • Web development Tool - Visual InterDev • On Line Editing • Converters - MS Word • Multimedia Editor

  18. Authoring Tools Accessibility Guidelines • Ensures generated documents conforms to Web standards • http://www.w3.org/WAI/AU/2002/tools - evaluation results for authoring tools • Dreamweaver, FrontPage. Etc.

  19. References • http://www.w3schools.com/browsers/default.asp • http://www.w3.org/ • http://www.howtocreate.co.uk/browserSpeed.html (performance comparison)

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