Introduction to XML Web Services by vev19514

VIEWS: 6 PAGES: 12

									 Introduction to
XML Web Services
         Kevin D’Souza
  Academic Developer Evangelist
      Microsoft Corporation
        Session Prerequisites
• Web Application Development Concepts
• Object-Oriented Programming Concepts
                 Agenda
•   Evolution to Web Services
•   Web Services Overview
•   XML Overview
•   SOAP
•   Web Services in .NET
 Evolution to Web Services
• Object Models
  – Microsoft COM / DCOM, CORBA, Java
• Portals Providing More Functionality
  – MSN, Yahoo, AltaVista, etc.
• Business-to-Business Interoperability
   Evolution to Web Services
• DCOM is a Very Successful Technology
  Inside the Corporate LAN, But…
  – Is not firewall-friendly
  – Requires too many TCP/IP ports opened (not
    very popular with security administrators)
  – Stateful / connection-oriented
  – Not widely available in other platforms
     Evolution to Web Services
• No Standard Way to Access or Expose
  Functionality
• Integration with Other Businesses Is
  Expensive and Error-Prone
• Hard to Outsource
• Not Designed to Be Used Outside of This
  Scope
Evolution to Web Services
   Evolution to Web Services




Internet Business Processes Span Companies
                                                XML
                                  HTML
     ology      T CP/IP
Techn

Inno
    vati FTP, E-m
        on       ail, G
                       op her
                                Web
                                    Page
                                        s
                                            Web
                                                Serv
                                                     ic e s
    Evolution to Web Services
• Paradigm for Internet Development
• Deliver Applications as Services
• Richer, Customer-Driven Experience
• Accessible From Any Internet-Connected
  Device
• Continuous Delivery of Value/Bits
• Programmable
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