ASP.NET Web Services
3 Days

In this course, you will build a solid foundation for the development of Web services and gain an understanding of how commonly used protocols can impact your development effort. You will learn how to create and consume ASP.NET Web services, describe your Web service so that others can use it, and publish the details of your Web service’s exposed method. You will also discover how current and evolving standards, such as XML Schema and WS-Security, can be integrated into Web service development.

Topics Covered:

Learn to create and consume ASP.NET Web services
Gain an understanding of how the SOAP protocol acts as the underlying transport for Web services.
Utilize the XML Schema standard to define and validate SOAP documents
Discover how to solve common development issues by using both current and evolving standards, such as WS-Security, WS-Routing and WS-Transaction.

Prerequisites: The course materials assume that the student is familiar with Visual Basic. Some familiarity with Visual Basic .NET and Visual Studio .NET (ability to recognize namespaces and directives) is useful, as well as familiarity with creating Internet applications.
Introduction to ASP.NET Web Services

An Introduction to Web Services

Component-Based Development
What Are Web Services?
Web Service Terminology
XML Refresher
Web Service Request Architecture

Creating a Web Service

The Web Service Puzzle
Configuring Your Environment
Implementing a Web Service
Testing Your Web Service
Deploying Your Web Service

Consuming a Web Service

The Basics of Consumption
Consuming with Visual Basic 6
Consuming with Classic ASP
Consuming with Visual Basic .NET

Describing Your Web Service

What Is WSDL?
The WSDL Specification
Generating the WSDL File
Customizing the WSDL File

Publishing Your Web Service

The Publish/Find/Bind Cycle
Publish the Web Service
Finding a Web Service

Design Decisions for Web Services

Coupling and Web Service Design
Designing a Web Service
Implementing a Web Service
Other Design Issues
Interoperability

SOAP: Not Just For Hands Anymore

What is SOAP?
SOAP in Action
SOAP Encoding

XML Schemas

XML Schema Defined
XML Namespaces
XML Schema Elements
Validation Using XML Schemas

Web Service Authentication

Web Service Security Basics
Windows Authentication
Forms and Passport Authentication
Making the Choice
WS-Security
Custom Authentication

Improving Web Service Performance

Performance for Web Services
Common Performance Bottlenecks
Performance Enhancing Techniques
Designing for Scalability

Web Service Transactions

Transaction Concepts
Two-Phase Commit
WS-Coordination
WS-Transaction
Windows Transactions

Interacting with the SOAP Message

Processing a SOAP Message
HTTP Modules
HTTP Handlers
SOAP Extensions

Web Service Instrumentation

The Goal of Instrumentation
Availability
Latency
Performance
Failure Rate
Configuration

Calling SOAP from the Client

Improving the User Experience
DHTML Behaviors
The WebService Behavior