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Web-centric Computing

Web-centric Computing. What CS4173 Is About. What is the WWW?. A distributed document delivery service implemented using the client-server model running on the Internet Interoperability in a heterogeneous networked environment achieved by implementing shared protocols. What is the WWW?.

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Web-centric Computing

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  1. Web-centric Computing What CS4173 Is About

  2. What is the WWW? • A distributed document delivery service implemented using the client-server model running on the Internet • Interoperability in a heterogeneous networked environment achieved by implementing shared protocols

  3. What is the WWW? • A distributed document delivery service implemented using application-level protocols on the Internet • A network of co-operating computers interoperating using HTTP and related protocols to form a sub-net of the Internet • Like network news (Usenet) or UUCP or …

  4. What is the WWW? • A distributed document delivery service implemented using application-level protocols on the Internet • A network of co-operating computers interoperating using HTTP and related protocols to form a sub-net of the Internet • A tool for collaborative writing and community building • Blogs, wikis, podcasts • Interactive games and chats

  5. What is the WWW? • A distributed document delivery service implemented using application-level protocols on the Internet • A network of co-operating computers interoperating using HTTP and related protocols to form a sub-net of the Internet • A tool for collaborative writing and community building • A framework that supports e-commerce • On-line shopping and Business-to-Business • Secure credit-card transactions • Shopping carts

  6. What is the WWW? • A distributed document delivery service implemented using application-level protocols on the Internet • A network of co-operating computers interoperating using HTTP and related protocols to form a sub-net of the Internet • A tool for collaborative writing and community building • A framework of protocols that support e-commerce • A large graph made up of webpages and links • Webpages are nodes; Links are edges • Cyclical and directed

  7. What is the WWW? It is all of that and chips, too!

  8. What do the applications have in common? • E-commerce • Collaborative writing • Collaborative community building • Distributed document delivery service

  9. What do the applications have in common? • E-commerce • Collaborative writing • Collaborative community building • Distributed document delivery service • They all use the WWW as scaffolding • It is the framework that enables them

  10. In Web-Centric Computing… We do computing on the WWW • Putting the WWW under a microscope Not programming of the WWW • Writing protocols, and applications • However it is important to understand how everything works at a deep level

  11. Some things can only be learned by doing • So there will be programming • Making the client/server model jump through hoops • Alternation vs. interaction • Saving state with stateless protocols • Partial webpage updates (AJAX) • Remembering the human element • Audience analysis • Design for accessibility & stickability • Most programming will be in assignments • Some will be in tutorials

  12. Exact Topics? • To be determined in consultation with students • Basics must be covered, but… • Ordering and Concentration can be adjusted to suit your needs • Caveat: You don't always get what you want, but sometimes you get what you need.*

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