This course is intended for experienced software developers who have previously built component-based applications.

• Explain how XML Web services emerged as a solution to the problems with traditional approaches to designing distributed applications.
• Describe the architecture of an XML Web services-based solution.
• Describe the underlying technologies of XML Web services and explain how to use the Microsoft .NET Framework to implement XML Web services by using these technologies.
• Implement an XML Web service consumer by using Microsoft Visual Studio .NET.

• Implement a simple XML Web service by using Visual Studio .NET.
• Publish and deploy an XML Web service.
• Secure an XML Web service.
• Implement caching in an XML Web service.
• Evaluate the trade-offs and issues that are involved in designing a real-world XML Web service.
• Implement nonstandard XML Web services such as Hypertext Markup Language (HTML) screen scraping and aggregating XML Web services.

The Need for XML Web Services

• Describing the evolution of distributed applications.
• Identifying the problems with traditional distributed application architectures and technologies.
• Describing Web services and briefly explaining how they address the design problems in traditional distributed applications.

XML Web Service Architectures

• Identifying how Web service architectures are a type of service-oriented architecture.
• Describing the elements of a Web service architecture and explaining their roles.
• Describing the Web service programming model.

The Underlying Technologies of XML Web Services

• Describing the structures of an HTTP request and response.
• Issuing HTTP POST and GET requests and processing the responses by using the .NET Framework.
• Issuing a SOAP request and processing the response by using the .NET Framework.

Consuming XML Web Services

• Explaining the structure of a WSDL.
• Explaining the Web services discovery process.
• Locating service contracts by using Disco.exe.
• Generating Web service proxies by using Wsdl.exe.

Implementing a Simple XML Web Service

• Creating a Web service project.
• Implementing Web service methods.
• Managing state in an ASP.NET-based Web service.
• Debugging Web services.

Publishing and Deploying XML Web Services

• Explaining the role of UDDI in Web services.
• Searching a UDDI registry to locate Web services by using the UDDI SDK.
• Explaining the various options for publishing a Web service on an intranet.
• Explaining some of the options for modifying the default configuration of a Web service.

Securing XML Web Services

• Identifying the differences between authentication and authorization.
• Using SOAP headers for authentication in a Web service.
• Using role-based security and code access security for authorization in a Web service.
• Encrypting the communication between a Web service consumer and a Web service.

Designing XML Web Services

• Identifying the restrictions that are imposed on data types by the various Web services protocols.
• Explaining how the use of Application and Session state can affect the performance and scaling of Web services.
• Identifying the components of a Web service that can be versioned.
• Explaining how to implement a virtual Web service by using screen scraping.

Global XML Web Services Architecture

• Describe limitations inherent to the specifications with which today’s Web services are built.
• Describe the design principles and specifications of Global XML Web services Architecture (GXA).
• Design Web services that anticipate and can leverage the features that GXA will offer when released