What is Web 2.0?AgendaUnderstanding Web 2.0 - AgendaWeb 2.0?Web 2.0: Compact Definition?Web 2.0Web 2.0 ApplicationsWeb 2.0 Applications (1)Web 2.0 Applications (2)Web 2.0 Applications (3)Web 2.0 Applications (4)Slide 12Web 2.0 – RevisitAgenda (2)Axes of Design Patterns and Biz ModelsThe Web As Platform(1)The Web As Platform(2)The Web As Platform(3)Harnessing Collective Intelligence(1)Harnessing Collective Intelligence(2)Harnessing Collective Intelligence(3)Data is Next Intel InsideData is the Next Intel InsideEnd of Software Release CycleLightweight Programming ModelsSoftware Above The Level of Single DeviceRich User ExperienceFour plus one in Hierarchy of Web2.0 nessCore Competencies of Web 2.0 CompaniesAgenda (3)Web 1.0 VS Web 2.0 ExamplesSlide 32Slide 33Slide 34Slide 35Web 2.0 continues … (Mashups)Slide 37Slide 38Slide 39Slide 40Web 2.0 + SOASlide 42Agenda (4)Controversial QuestionsReferencesControversial Question (1)Controversial Question (2)Controversial Question (3)Controversial Question (4)Controversial Question (5)What is Web 2.0?By Eunkyu Lee, Alireza Bigdeli, and Rita ChiuExpert Topic PresentationTrends in Middleware SystemsJanuary 29, 20072Web 2.0, Jan. 29, 2007AgendaUnderstanding Web 2.0Origins and ConceptsCompact DefinitionDesign Patterns and Business ModelsAxes of Design Patterns and Business ModelsFour plus one in Hierarchy of Web2.0 nessWeb 1.0 vs. Web 2.0 Mashups & Web 2.0 + SOAControversial Questions3Web 2.0, Jan. 29, 2007Understanding Web 2.0 - AgendaWeb 2.0?OriginWhat Web 2.0 is and is not…Web 2.0 Compact DefinitionWeb 2.0Web 2.0 ApplicationsFour propertiesWeb 2.0 Revisit* From Prak’s posts at http://www.fortytwo.co.kr/4Web 2.0, Jan. 29, 2007Web 2.0?Origins of Web 2.0Coined by Dale Dougherty in 2004VP of O’Reilly MediaPeopleCollaborate and share information in new ways such as social networking and wikisWeb 2.0 is notA specific technology or a standardIt is said thatA set of principles and practicesMaking existing web technologies more people-centricSomething visible and tangiblea collection of related tools, design patterns, and business models that encourage collaboration and participation to work more efficiently* From lecture notes of Prof. David Shrimpton at Kent Univ.5Web 2.0, Jan. 29, 2007Web 2.0: Compact Definition?Web 2.0 compact definition (by Tim O’Reilly)Web 2.0 is the network as platformspanning all the connected devices Web 2.0 applications are those that make the most of the intrinsic advantages of that platform6Web 2.0, Jan. 29, 2007Web 2.0“The Web as Platform”The Web is the unique platformOS or Web browser is not a platform any moreHardware devices+ all the connected devicesIncluding mobile InternetUCC (User Created Contents) & Podcasting (iPod)Web 2.0A collection of platforms which is interconnected by underlying network regardless of their hardware devices Web 2.0 is the network as platform, spanning all the connected devicesWeb 2.0 is the network as platform, spanning all the connected devices7Web 2.0, Jan. 29, 2007Web 2.0 Applications Four properties to use the intrinsic advantages of the platformDelivering software as a continually-updated service that gets better the more people use it, Consuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others, Creating network effects through an "architecture of participation," And going beyond the page metaphor of Web 1.0 to deliver rich user experiences. Web 2.0 applications are those that make the most of the intrinsic advantages of that platformWeb 2.0 applications are those that make the most of the intrinsic advantages of that platform8Web 2.0, Jan. 29, 2007Web 2.0 Applications (1) Continually-updated servicePerpetual betaContinuous improvementDelivering softwareSimilar to Application Service Provider (ASP)Software as a service (SaaS) in web platformAJAX (Asynchronous Java and XML) Gets better the more people use itUCC (User Created Contents) Decentralization of resourcesSuch as BitTorrent and NapsterDelivering software as a continually-updated service that gets better the more people use itDelivering software as a continually-updated service that gets better the more people use it9Web 2.0, Jan. 29, 2007Web 2.0 Applications (2) Consuming and remixing dataNews aggregator and meta blogAdd values not just showing as it isDigg.com (vote for priority)Mash-upNew contents or services from multiple sourcesHousingmap.com and ChicagoCrime.comIn a form that allows remixing by othersOpen APIConnecting services via share and openGoogle and Yahoo APIsConsuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by othersConsuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others10Web 2.0, Jan. 29, 2007Web 2.0 Applications (3) Architecture of participationMore important…A property inherited within the business systemA architecture where self-interested behaviors of users (in)directly or automatically benefit the whole usersNew biz: Napster and WikipediaExisting biz: Flickr (foksonomy tool) and AmazonNetwork effectsTelephoneMore benefit when more people use itInternet is a winner-take-all marketCreating network effects -> Harnessing collective intelligenceCreating network effects through an "architecture of participation”Creating network effects through an "architecture of participation”11Web 2.0, Jan. 29, 2007Web 2.0 Applications (4) Page and Page metaphor* Gene Smith, “Beyond the Pages,” Info. Architecture Summit, July 2005.And going beyond the page metaphor of Web 1.0 to deliver rich user experiencesAnd going beyond the page metaphor of Web 1.0 to deliver rich user experiences12Web 2.0, Jan. 29, 2007Web 2.0 Applications (4) Beyond the page metaphor* Microcontent: Richard MacManus, Web 2.0 Design: Bootstrapping the Social WebAnd going beyond the page metaphor of Web 1.0 to deliver rich user experiencesAnd going beyond the page metaphor of Web 1.0 to deliver rich user experiences13Web 2.0, Jan. 29, 2007Web 2.0 – RevisitWeb 2.0 & Web 2.0