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Web Service Fundamentals Using VB.NET and ASP.NET
Rev. 1.0
Web Services Training Overview

This course provides a realistic, hands-on, comprehensive coverage of developing Web services using ASP.NET and VB.NET. Web services are an evolving series of standards that enable programs on various computers to communicate with other programs on similar or disparate computers transparently over the Internet. This course teaches in detail the skills needed to program Web services using ASP.NET. It also examines the fundamentals of SOAP and WSDL essential for creating interoperable Web services.

The first chapter introduces Web services, including evolution, motivation, backbones, and reasons to embrace Web services. Chapter 2 exposes the anatomy of a Web service through hands-on exploration and tracing of a simple Web service, examining HTTP, XML, SOAP and WSDL. Web services are developed using the .NET Framework SDK

Chapter 3 covers the details of how to create and debug ASP.NET Web services using Visual Studio .NET. Chapter 4 shows how to create clients for Web services, both manually and using ASP.NET. and consume the same in various clients. Sophisticated topics, such as state management, caching and transactions in Web services are covered in Chapter 5. The next four chapters discuss important technologies at the foundation of ASP.NET Web services, including XML serialization, SOAP, WSDL and UDDI. The .NET classes for manipulating WSDL files are explored, and the UDDI .NET SDK is introduced.

The course concludes with an exploration of Web services security and the emerging Microsoft Global XML Web Services Architecture (GXA). The discussion includes the various security issues and technologies in Web services such as Basic HTTP, HTTPS, (SSL 3.0), XML Signature, XML Encryption, XML Key Management Specification (XKMS), Security Assertion Markup Language (SAML) and WS-Security.

Web Services Training Learning Objectives

  • Gain a comprehensive understanding of the philosophy and architecture of Web services
  • Acquire a working knowledge of creating and consuming Web services using the .NET Framework and Visual Studio .NET
  • Attain a detailed knowledge of the building blocks of Web services, including XML, SOAP, WSDL and UDDI.
  • Understand issues in the ASP.NET programming model, such as caching, data handling and state management.
  • Attain a comprehensive knowledge of Web services security
Web Services Training Prerequisites

Knowledge of the .NET Framework using VB.NET and an understanding of the fundamentals of XML. Some experience in ASP.NET is advantageous.

Web Services Training Course duration

4 days

Web Services Training Course outline

1.What Are Web Services?
 
Introduction to Distributed Computing
Motivation for Web Services
Evolving of Web Services
Web Services Definition
Next Generation of Distributed ComputingóWeb Services!
ASP.NET Web Services
Reasons to Embrace Web Services Architecture
Benefits of Web Services
Backbones of Web Services
Alternative to Web Services: .NET Remoting

2.The Anatomy of Web Services
 
Creating a Web Service Using ASP.NET
Deploying a Web Service Using IIS
Testing a Web Service
HTTP
XML
SOAP
Web Service Clients
SOAP Toolkit Trace Utility
WSDL

3.Developing ASP.NET Web Services
 
Using VS.NET to Develop ASP.NET Web Services
An Overview of the Web Services Namespaces
Deriving from the Web Service Class
@Webservice Attribute
Web Service Class
Adding a WebMethod to Web Services
Debugging Web Services

4.Web Service Clients
 
Web Service Proxies
Web Services Description Language Tool (Wsdl.exe)
Creating a Proxy with VS.NET
Adding Reference
Returning Complex User-Defined Data Types
Understanding Web Services Clients
Developing Console Clients
Developing Web Forms Clients
Developing Windows Form Clients

5.ASP.NET Web Services Programming Model
 
Asynchronous Programming in Web Services
Managing State in ASP.NET Web Services
Transactions in ASP.NET Web Services
Caching in ASP.NET Web Services

6.XML Serialization
 
XmlSerializer
What Is Not Serialized
Writing and Reading XML
Customizing XML Serialization
XML Schema and XSD
Creating Classes from Schemas
XML Serialization and Web Services

7.More About SOAP
 
The Structure of SOAP Messages
Using SOAP Headers
SOAP Faults
Document and RPC Style Messaging
Literal and Encoded Use
Customizing SOAP with Attributes

8.More About WSDL
 
The Need for Service Description
An IDL for Web Services
WSDL Namespaces
The WSDL Description Model
WSDL Descriptors as Schema
Message Description
Messaging Scenarios
Operations: Input, Output, and Fault
Messages
Service Description
Extending WSDL
.NET WSDL Classes
WSDL First!

9.Web Service Discovery and UDDI
 
Publishing and Discovery of Web Services
Universal Description, Discovery and Integration
UDDI in Visual Studio .NET
UDDI Information Model
tModels
Creating a UDDI Description of a Business
Using the Microsoft UDDI .NET SDK
Accessing the UDDI Registry

10.Web Services Security and GXA
 
Security in Web Services
Basic Techniques in Securing Web Services
Secure Connection
Secure Sockets Layer (SSL) - HTTPs (Secure HTTP)
Authentication and Authorization for Web Services
Basic Security for Transmissions over HTTP
Web Services and Secure Sockets Layer (SSL)
XML Signature and XML Encryption
XML Key Management Specification (XKMS)
Security Assertion Markup Language (SAML)
Extensible Access Control Markup Language (XACML)
Need for End-to-End Security
Global XML Architecture (GXA)
WS-Security
Web Service Enhancements (WSE)

Appendix A. Learning Resources

Appendix B. Customized SOAP Messages

System Requirements

Course exercises require Microsoft .NET and Microsoft Visual Studio.NET on Windows 2000. Internet Information Services should be installed. See the appropriate course Setup Guide for details.

A good minimal hardware profile for this course would have a Pentium 500MHz or equivalent CPU, 256 Meg of RAM and at least 500 megabytes of free disk space for tools installation and courseware.


 
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