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Overview

Overview. Web 2.0 has become characterized by applications that connect people and technologies that link data The Internet makes it possible to access information from any Internet-connected device Web-based tools for collaboration Web applications Other technologies for sharing information.

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Overview

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Presentation Transcript

  1. Overview • Web 2.0 has become characterized by applications that connect people and technologies that link data • The Internet makes it possible to access information from any Internet-connected device • Web-based tools for collaboration • Web applications • Other technologies for sharing information Chapter 6: Linking Data

  2. Computing in the Cloud • Cloud computing describes how applications are stored and deployed on a network of Internet servers • Cloud represents the Internet • Cloud computing service providers offer server space and processing • Companies such as Google, Amazon, Microsoft, and Salesforce often operate these servers for many businesses Chapter 6: Linking Data

  3. Computing in the Cloud Chapter 6: Linking Data

  4. Computing in the Cloud • Cloud computing includes three main areas of service: • Infrastructure as a Service (IaaS) • Delivery of a networked computing structure over the Internet • Platform as a Service (PaaS) • Delivery of a computing platform over the Internet • Software as a Service (SaaS) • Delivery of software applications over the Internet • Cloud computing is more cost-effective Chapter 6: Linking Data

  5. Infrastructure as a Service: Computing in the Cloud • Consumers can store photos, music, documents, and other files in the Cloud • Public Cloud • Hybrid Cloud • Private Cloud • Many Cloud storage providers offer limited storage for free, and charge an additional fee for more storage • Freemium business model Chapter 6: Linking Data

  6. Infrastructure as a Service: Computing in the Cloud Chapter 6: Linking Data

  7. Infrastructure as a Service: Computing in the Cloud • A virtual computer is a Web application that provides computing capabilities Chapter 6: Linking Data

  8. Infrastructure as a Service: Computing in the Cloud • Using virtualization, one host machine can operate as if it were several smaller servers Chapter 6: Linking Data

  9. Platform as a Service:Application Development in the Cloud Chapter 6: Linking Data

  10. Platform as a Service:Application Development in the Cloud Chapter 6: Linking Data

  11. Software as a Service:Applications in the Cloud • The Web adds connectivity to many traditionally desktop-hosted applications Chapter 6: Linking Data

  12. Consumer Applications in the Cloud • Cloud computing makes it possible for companies to offer Web-based versions of popular personal computer programs • Gmail • Microsoft Office Outlook Web Access • Google Docs • Google Reader • Google Sites • ZohoWriter • Microsoft Office Live • Sumo Paint Chapter 6: Linking Data

  13. Business Applications in the Cloud • The Salesforce Service Cloud allows businesses to pay as they use services, instead of owning comparable software Chapter 6: Linking Data

  14. Computing in the Cloud with Google Docs • Integrated SaaS suite of Web applications • Free service to customers • Users can access documents from anywhere • Documents • Spreatsheets • Presentations • Folders • Forms • Users can upload existing documents • Users can collaborate with each other Chapter 6: Linking Data

  15. Authenticating with OpenID • OpenID is an authentication service that allows users to sign on to many different Web sites using a single, common digital identity • Google • Yahoo! • Blogger • AOL Chapter 6: Linking Data

  16. Authenticating with OpenID Chapter 6: Linking Data

  17. Creating New Applications from Data in the Cloud • Mashups are Web applications that combine content or data from multiple online sources into new Web applications • Contents are continually updated • Content for mashups often comes from Web feeds and Web services • Creating mashups usually requires significant Web development experience Chapter 6: Linking Data

  18. Creating New Applications from Data in the Cloud Chapter 6: Linking Data

  19. Linking Data in Context: A Prelude to Web 3.0 and Beyond • Web 3.0 is the name that is being used to describe emerging trends that allow people and machines to link information in new way • Agents can make decisions and take actions based on a user’s preferences • Many describe Web 3.0 as the rise of the Semantic Web • Intelligent software tools can read Web pages and discern useful information from them Chapter 6: Linking Data

  20. Linking Data in Context: A Prelude to Web 3.0 and Beyond Chapter 6: Linking Data

  21. Linking Data in Context: A Prelude to Web 3.0 and Beyond Chapter 6: Linking Data

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