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Slide 1: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Web 2.0 Tutoriál Tomáš Pitner1,2 Pavel Drášil1 Martin Hinca3 1 Masarykova univerzita, Fakulta informatiky tomp@fi.muni.cz,xdrasil@fi.muni.cz 2 Universität Wien, Research Lab Educational Technologies tomas.pitner@univie.ac.at 3 Avitech s.r.o., Bratislava martin@hinca.net 11. ˇíjna 2009 — Srní, Czech Republic r Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 2: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Goal of the Tutorial 1 Organize the scattered information on Web 2.0 and present it in a comprehensible way for a wide audience software analysts and developers IT managers business people students and researchers Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 3: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Structure of the Tutorial 1 2 3 Core concepts and principles revisited Application categories Web 2.0 context people technology law. 4 5 6 7 Web 2.0 as development platform Business in Web 2.0 Web 2.0 in business Conclusion and consequences Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 4: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation History of ”Web 2.0” Darcy DiNucci, 1999 in Fragmented Future (. . . but remain unnoticed) Web 2.0 Conference in San Francisco, 2004 Brainstorming led to its characterization Tim O’Reilly’s paper What is Web 2.0 . . . in 2005 (. . . still the #1 in citations) Still no recognized short definition (we are not likely to see any. . . ) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 5: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Panoramio Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 6: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Why ”Web 2.0” Many current trends in technology but mainly in the usage of the Web Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 7: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Technological Shift incremental development rather than a break-through sometimes criticized as "Nothing new!" Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 8: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Exploiting the Existing Web Environment server/client communication IP-based network architecture web browsers as the user agents interactive applications (Rich Internet Applications – RIA) using old-hat client-side scripting technologies (JavaScript) or specialized runtime environments (Flash). Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 9: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Mature & Consolidated Data Formats Extensible Markup Language (XML) mature (industry standard since 1998) supported by all vendors and platforms full stack of technology (from parsers to native-XML DBMS) Enterprise strength (JavaEE, .NET) vs. dynamic, agile languages environments (Ruby) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 10: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Range of Develop&Deploy Platforms All sizes: from enterprise strong to simple and cheap Enterprise strength (JavaEE, .NET) vs. Dynamic, agile languages and environments (Ruby) Simple all-in-one stacks (LAMP) Cheap hosting (PHP apps.) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 11: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Service-Oriented Architectures Progress in networking and software architectures Service-Oriented Architectures in enterprise environment The same but simpler for the Web: legacy protocols (HTTP) formats (HTML, RSS/Atom, FOAF) Easy to integrate: reuse data from a service, remix with others, republish. . . Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 12: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation New Computing Paradigms Cloud computing Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 13: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Growth & Change More users Different activities: communication collaboration participation Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 14: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Technological Factors User Participation Social Networking Application/platforms like Facebook, MySpace: hundreds of millions users No need of special skills (often neither computer skills) Features boosting participation: tagging, syndicating Low entry barrier: both end-users & app. providers New business models Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 15: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Rough Classification 1 Creation: wikis, blogs, online databases, text processing, calculations, presentations Sharing: pictures, videos, music Storage: P2P storage, filesystem-like services, middleware services Coordination: communication, event and project management, IM systems Community: social networking, orientation to professional or free-time activities Contextualization: mashups Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0 2 3 4 5 6
Slide 16: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts “Mashing-Tree” Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 17: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Penetration of PCs Total number of PCs installed: > 1 billion Expected to double in 2014, mainly in emerging markets Mature market share decreases: 58 % from the first billion 30 % from the second Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 18: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Mobile Devices, Wearables Various categories: PDAs, netbooks, smartphones, mobile phones Smartphones: Symbian (47 %) and BlackBerry (20 %) dominate the market Mobile phones: the largest market ever, 4 billions subscribers! Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 19: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Size of the Web 1 2 3 Number of websites or web pages Number of hosts Number of users Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 20: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Sites and Pages Google indexes > 1T pages (1012 ) About 625 M connected hosts 225 M web servers Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 21: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Users 1.670 B users worldwide: 1/4 of the population!: Asia 700+ M Europe 400+ M N.Amer. 250+ M Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 22: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Penetration Worldwide Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 23: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Dynamics 1 2 3 Africa, Middle East: 1300+ % Latin America: 800+ % Asia: 500+ % Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 24: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts By Language 1 2 Arabic: 1500+ % Portuguese, Russian: 800+ % Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 25: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Social Networks Users Uneven distribution, some services popular in some regions Some popular worldwide (Facebook) Some locally: MySpace (Latin America), StudiVZ (German-speaking world) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 26: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Who’s the #1? 1 2 Facebook 120+ M users #1 since 2008 MySpace Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 27: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Blogging Authors: upto 200 M blogs Readers: 384 M 133 M “acknowledged blogs” by Technorati Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 28: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Global Market Users from multiple regions, under various legislation Providers with the infrastructure spread among regions and legislations Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 29: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Government Infringements Censorship (extensive in China, 30 k police people constantly watching discussions, tweets, fora) Capability to block certain servers “on demand”: Great Firewall of China Certain control in democratic countries Some attempts denied by supreme courts Some regulations anchored in ToS Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 30: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Terms of Service in General Though apps are accessible with no costs, still ToS are legally binding documents. Screening in 2007 (20 applications) All services reviewed except of one provided a ToS document Style of licensing documents varies from an itemized list to complex 10+ pages documents. Large operators =⇒ longer ToS (Google, Yahoo). Sometimes a simplified version of ToS is provided In very few cases, the ToS in the local language is offered. Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 31: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts User-supplied Data Licensing Web 2.0 apps are user-centric thus nothing without user-provided data The apps generally disclaim data ownership They need specific right to be able to process the data (present it, create thumbnails,. . . ) Some apps claim further rights: non-private data for advertising or promotion License type sometimes left to end-user: selection from predefined licenses Often Creative Commons licenses are offered Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 32: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Overview of Licensing (end 2007) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 33: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts End-user Data Privacy apps treate personal and “private” data as confidential reveal them only under serious conditions Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 34: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Authentication and Authorization rarely an inter-application AAI is used today except of OpenID enabling to authenticate at one place (identity provider) and register elsewhere (end-app) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 35: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Access Mode 1 2 private access (only owners can access the data) public access (everybody on the Internet can see or even modify the data) various kinds of sharing (explicitly invited people, implicitly “friends”, group members) 3 Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 36: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Content Limitations Some restrict content not to violate copyrights nor contain vulgarity, nudity, racism. . . Other impose other limitations due to application intention: Flickr to personally taken photos “Nonsenses”: Google Base which allowed textual data to be in English and German (2007) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 37: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Incorporating Functionality by 3rd Party Motto: Mashups are welcome but not everything is allowed. (1) User accounts: not to be created in automated ways by humans only forbid account sharing among multiple people Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 38: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Incorporating Functionality by 3rd Party (2) Data: any (automated) harvesting generally prohibited! How many scientific studies have emerged from such a process? Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 39: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Incorporating Functionality by 3rd Party (3) Software copyright: not allowed to copy, reproduce, alter, modify, reverse engineer nor create derivative works. Are mashups derivatives or just dependent applications? The only service allowing incorporating GUI is Zoho. Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 40: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Identity Breaches Fake profile imitating a real person on Facebook or MySpace E.g. Alessandro Del Piero case: defamed as a Nazi-fan Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 41: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Privacy Cases Attempts to regulate file-sharing services: they compromised FBI files, medical records, and SSNs Social networking apps: The providers allow to create mashups getting full access to user profiles. Unresponsible user behavior is often the cause: undesired authorizing 3rd party apps/mashups. However, in some services the users cannot even completely prevent this! Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 42: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Hi5 Example Section 6. of hi5 ToS By posting Content to any area of the Services, you automatically grant, and you represent and warrant that you have the right to grant, to hi5 an irrevocable, perpetual, non-exclusive, royalty-free and fully paid, worldwide license to reproduce, distribute, publicly display and perform (including by means of a digital audio transmission), and otherwise use Content and to prepare derivative works of, or incorporate into other works, such Content, and to grant and authorize sublicenses of the foregoing. Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 43: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Spamming in Social Networks as popular as traditional mail spam lower chances to protect yourself serious legal cases with high sentences (Adam Guerbuez vs. Facebook $ 800 M) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 44: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Classification People & Technology Political Implications Legal Conditions Misuses and Unlawful Conducts Social Networks in Investigations SN systems frequently used in criminal investigations: as an evidence of someone activity such as internet use Private pictures seem to be a good matter! (see Presley case) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 45: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Protocols and Formats Data transfer protocols: HTTP, SMTP, and XMPP, SOA architectural style: Web 2.0 machine accessible services (SOAP or REST) Security: SSL/TLS layer Syndication: RSS (Really Simple Syndication) and newer Atom. End-user content: HTML 5 with XML serialization will replace XHTML Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 46: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Protocols and Formats Object data: At a lower level, JSON (JavaScript Object Notation) now belongs, beside XML, to the group of dominant serialization formats for object interchange between a Web 2.0 application/service and its client. Plugability: modern browsers (Firefox, MS IE, Safari) pluggable with various (platform-independent) modules Search interfaces: OpenSearch enables to locate the engine, its description, query and response formats Access management: OpenID, Enterprise Sign On Engine or proprietary authentication systems (like Yahoo! Or Googles) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 47: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Microformats “parasite” formats based on standards like HTML 4 giving HTML attributes (elements) a specific interpretation =⇒ remains standard-complaining but is enhanced with semantically rich data Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 48: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Microformats Microformats cover many areas of general interest: People and organizations (hCard, XFN) Calendars and events (hCalendar) Ratings and reviews (VoteLinks, hReview) Licenses (rel-license) Tags, keywords, categories (rel-tag) Lists and outlines (XOXO). Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 49: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Personal Identity Formats Personal identity, profile, and activity data formats: OAuth FOAF (Friend-of-a-Friend) Activity Streams Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 50: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Metadata 1 2 3 HTML native metadata (HEAD/META elements) metadata encoded using microformats (such as time) fully-fledged RDF metadata Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 51: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Client requirements JavaScript-capable browser all apps are AJAX-based (Asynchronous JavaScript and XML) JSON replaces XML where overhead is an issue browser with Adobe Flash plug-in Even some mobile devices satisfy these requirements Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 52: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Client requirements Discrepancies between Web 2.0 applications and mobile devices capabilities but Smartphones pre-configured for Google services Cameras ready to upload to YouTube or still images to Flickr Enterprise IS need tailored solutions for BlackBerries, iPhones, Android devices, or Windows Mobile or Java-enhanced mobile phones W3C Mobile Web Initiative to enable “Mobile Enterprise 2.0” Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 53: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Solutions for providers Hosting provider, application operator: pre-configured low-maintenance stacks – LAMP or WAMP all-in-one packages (Linux/Windows + Apache + MySQL + PHP) Enterprise-strength RedHat Enterprise Linux, Solaris, AIX, or Ubuntu with virtualization tools like Citrix, KVM, Sun xVM, or VMWare Market for pre-fabricated tailored virtual machine images for specific purposes (database servers, development machines, messaging servers) into a virtualization platform (VMWare, VirtualBox) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 54: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Development Environment for Web 2.0 Typical Web 2.0 application development environment — similar to enterprise development. Example: Java Enterprise Edition stack Platform’s Software Development Kit (such as Java EE 5 SDK) Integrated Development Environment/s often highly customized (Web application development, SOAP web services, JBI, databases) Integrated or stand-alone build management system such as make, Ant, or Maven Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 55: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Development Environment for Web 2.0 Source control system: either a lightweight open-source tools (centralized systems like CVS, Subversion, or distributed Git) or a heavyweight commercial like IBM ClearCase Systems supporting project documentation, issue tracking, communication in team and with clients, change traceability, accountability, and reporting standalone (JiRA for issue tracking, IM tools for communication in teams) or integrated solutions for development management Free alternatives, such as Trac. Team management systems: IBM Rational Team Concert, Microsoft Office Project Server, or Oracle Project Portfolio Management Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 56: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Frameworks Web 2.0 application style: high interactivity, complex client-side, JavaScript heavy code Google Web Toolkit – generates server- and client-side from single-source OpenLaszlo – open source alternative. Numerous JavaScript and widget toolkits like Yahoo! UI Library, Dojo, or jQuery. Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 57: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Integrated Community Services – GitHub Example GitHub: Complete, secure project/development hosting service (120 k users) Hosting both open-source & commercial project source code management project documentation communication accounting features Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 58: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Alternatives Sourceforge.net: largest, 230000 users, Sourceforge Enterprise suite for commercial projects Codehaus.org Google Code Java.net Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 59: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Comparison: 3 Case Studies 1 2 3 4 Example A1: Application Hosting Example A2: Application Hosting “NG” Example B: Server Housing Example C: Cloud Computing Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 60: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example A1: Application Hosting Ruby on Rails hosting provider (Prague, CZ): 1 2 3 4 5 6 7 8 starting from $11/month web domain 1 GB storage 3 Mongrel instances MySQL Git SVN (alternative: full service with unlimited applications, 20 GB storage, dedicated IP and server for $194) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 61: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example A2: Application Hosting “NG” Google App Engine: hosting client applications on Google’s infrastructure currently Python-based Django and Java persistent storage: queries sorting transactions Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 62: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example B: Server Housing Server housing company (Prague, CZ): server housing service from $111/month electricity consumption air conditioning good network connectivity non-stop access security monitoring Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 63: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example C: Cloud Computing Elastic Cloud Computing service (EC2) by Amazon: What the client/developer does? 1 Create an Amazon Machine Image (AMI) containing the applications, libraries, data, and configuration, or use pre-configured, templated images 2 Upload the image into Amazon S3 file hosting service 3 Select, configure, and monitor the operating system, storage, security and network access (such as a fixed IP) via a web interface 4 Pay for resources that are consumed (instance-hours, data transfer) 5 Establish a private cloud in the VPN 6 Select Availability Zone Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 64: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Cloud Computing Characterized What advantages does it have? High availability: EC2 SLA guaranties 99.95% Wide spectrum of OS: RedHat Enterprise Linux, Windows Server 2003, Oracle Enterprise Linux, Open Solaris Pre-configured images: DBMS like IBM DB2, Informix, Oracle 11g, MySQL, MS SQL Server Enterprise application environments: IBM WebSphere AS or JBoss Enterprise Application Platform IBMs Web 2.0 development environment sMash Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 65: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Cloud Computing Characterized Pricing offers several models (example for Windows): no basic fee in this model! from $0.11 per hour (on-demand model, low CPU on Linux) to $1.28 for high CPU for one instance ($80 . . . $920 / month) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 66: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Cloud Computing Characterized Additional services charged separately: data transfer monitoring payment services load balancer Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 67: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Considerations/1 Powerful computing infrastructure with zero initial capital investment More flexible than application hosting such as Google App Engine Scalable Range of instant enterprise level operating systems, DBMS, and application servers in EC2 Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 68: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Considerations/2 Generally more secure & reliable than typical mid-range hosted solution Comparison: more expensive when the simplest application hosting service satisfies the client needs and far more expensive if a (rather limited) free GAE-like hosting is enough Simple ordering and management: self-service online Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 69: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Quality Issues Cloud computing raises questions concerning the quality of service (QoS) Service level agreements (SLA) should cover: functional specification availability reliability security risk elimination in case of disaster service should enable data backup management Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 70: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Risks and Pitfalls How our data is protected against security breaches, compromising? How is it backed-up? Do we have instant access to our data? Do we know where it is physically stored? Can we select the geographical locations? What happens after a disaster? What if the provider goes out of business? Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 71: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 What about open-source? Free / open source software (OSS) for the infrastructure Criticized by OSS advocates: lock-in effect danger by relying on proprietary solutions (with potentially growing prices in the future) Transition to other provider may be cumbersome (different technology, maintenance, processes) Affero GPL Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 72: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Mashup Development 1 2 3 4 Client-side Mashing by Scripting Client-side Mashing by Widgets Server-side Mashups Content Syndication Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 73: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Client-side Mashing by Scripting Server-side: mostly just serve the client code (JavaScript) Example: Google Maps upto 25 % of all mashups Adobe Flash can replace JavaScript map content is physically mashed in client browser Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 74: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Client-side Mashing Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 75: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Script Load Mashing up . . . (load scripts) <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Google Maps JavaScript API Example</title> <script src="http://maps.google.com/maps? file=api;v=2;key=abcdefg;sensor=true_or_false" type="text/javascript"></script> Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 76: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Script Initialize Mashing up . . . (initialize objects) <script type="text/javascript"> function initialize() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map_canvas")); map.setCenter(new GLatLng(37.4419, -122.1419), 13); map.setUIToDefault(); } } </script> </head> Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 77: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Script Use Mashing up . . . (use the map) <body onload="initialize()"onunload="GUnload()"> <div id="map_canvas"style="width: 500px; height: 300px"> </div> </body> </html> Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 78: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Client-side Mashing by Widgets simpler than generic scripting: insert provided widget to the page, blog, wiki many components like m-m players (YouTube), news displayer, task lists. . . components to blogs (Blogger, Google Sites,. . . ) targeted to end-users, not app developers Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 79: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Bookmarking Widget Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 80: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Flickr Widget Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 81: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Server-side Mashing concentrate computational power and data storage on server-side better combines if there is unique data on the server potential for hosting on a cloud content can also be cached there Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 82: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Server-side Mashing Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 83: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Content Syndication RSS/Atom syndication feeds covers not just "news" feeds organized into channels (e.g. one channel per blog) items (one item per new blog entry) basic meta/information about XML (even RDF) form allows clicking-thru to original resource Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 84: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Syndicated Content Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 85: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Development Tools and Platforms as an enterprise system specialized tools, e.g. IBM sMash (formerly Mashup Starter Kit), or Mapbuilder Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 86: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Tools For Simple Workflows fetch transform present Dapper system: developing and hosting mashups Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 87: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Application Programming Interfaces bridge between service (application) and its consumer (another programm) defines protocols, formats, or provide stubs at the client side =⇒ low- (e.g. HTTP-based communication protocol, formats) or high-level (OOP class libraries) may, but need not, be built upon Web Service standards class libraries most frequently for Java, Ruby, Python, and PHP, less C/C++ Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 88: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 API based on Web Service standards SOAP: suite of standards developed since late 90s (industry-driven) REST: not a standard, but an architectural style (R. Fielding, 2001) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 89: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 REST principles “back to the roots of the web” web applications manipulate resources (“objects”, “entities”, concrete or abstract) resources are identified by URIs resources can be created, read, updated, or deleted (CRUD operations) the operations directly map onto basic HTTP methods (POST, GET, PUT, DELETE) resources are manipulated via their representations (virtually anything: plaintext, XML, JSON, graphics, . . . ) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 90: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Web Service Description SOAP: WSDL always REST: WSDL rarely, mostly a verbal, informal description Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 91: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Service Lookup 1 automated service lookup: service directories (almost exclusively for SOAP and rare) manual lookup: the most popular for REST service directories: ProgrammableWeb.com (1400+ APIs, 4500+ mashups) 2 3 Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 92: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Standardization Development for Web 2.0 Development helped by Web 2.0 Deployment in Web 2.0 Example: Amazon WS Both SOAP and REST interface 1 SOAP: less popular, higher overhead, simpler for some development environments (WSDL descriptions easily generate classes) REST: very popular (80. . . 90 % of calls: 5 B/month) 2 Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 93: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Web 2.0 and Business 1 2 Generate profit FROM WEB 2.0 APPLY WEB 2.0 in traditional business Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 94: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Monetizing Web 2.0 interesting apps have potential to attract users, identify niche-markets by connecting people at global scale they still need appropriate means to leverage profit investors more sensitive after dot-com bubble Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 95: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Per-unit Fee Model fixed per product content on pay-per-download basis like http://i-legalne.cz quickly available products more precise selection (one song instead of album) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 96: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Subscription Model fixed amount per period of time similar to other businesses (leasing), predictable combined to Freemium Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 97: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Advertisement-based Model core of Web 2.0 business natural extension from classical media (TV, newspapers) dot-com bubble: so high costs that just 1/3 get covered! they did not target to Long Tail Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 98: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Advertisement: Conditions Providers should serve: carefully selected context-based (unlike idnes.cz) unobtrusive advertisements (unlike many) preferably in a plain form (cf. Google Ad) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 99: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Per-transaction Fee Model “man in the middle” fixed or percent-based from each transaction may be profitable for both sides either large quantities (eBay.com) or very specific goods (Fler.cz) Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 100: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Revenue-sharing Model business-to-business agreement sharing access to users or customers slicing the profits Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 101: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Combined Revenue Stream Models often THE MODEL Example: Freemium (free + premium) model Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 102: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Web 2.0 in Enterprise Web 2.0 is NOT just open community matter also used to support “normal” business support internal processes Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 103: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise 2.0 Joe Lennon (Core International): Enterprise 2.0 is the concept of using tools and services that employ Web 2.0 techniques such as tagging, ratings, networking, RSS, and sharing in the context of the enterprise. Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 104: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise 2.0 Patterns Syndication: syndicated access to information and services Enterprise mashups: rapid creation, sharing, and evaluation of applications to access and manipulate content and services Marketing as a conversation: end-user engagement through social networking, transforming marketing from broad-brush communication to thousands of individual conversations Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 105: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise 2.0 Patterns Community exploitation: lowering the communication costs and exploring the social networking capabilities to reach the Long Tail Rich interfaces: Improvements in real-world metaphors and visualization of complex data through rich-media UI Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 106: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise 2.0 Tools IBM Lotus Connections Microsoft SharePoint Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 107: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise Mashups Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 108: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Enterprise 2.0 Survey surveying 14 big companies in various segments by Jakob Nielsen Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 109: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Survey Results frontier workers and young people are the driving force not tools but the changes in communication: they discover lacks but the quality of the tools matters enough value (own data or user-provided) do not duplicate work Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 110: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise Survey Results communication flow is not under control freedom must be accompanied with responsibility – no anonymity in enterprise social networks self-regulation works in enterprises too in average, the companies need about 3-5 years to adopt Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 111: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Revenue Streams Web 2.0 in Enterprise State of Enterprise 2.0 Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 112: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion Reality, not just a buzzword driving force to many businesses driving force to internet expansion new computing concepts future enhanced with semantics: See you in Web 3.0! Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0
Slide 113: Introduction Core Characteristics Web 2.0 as Platform Development Business with Web 2.0 Conclusion That´s all. . . Thanks for your attention! Questions now or later tomp@fi.muni.cz Tomáš Pitner, Pavel Drášil, Martin Hinca Web 2.0