Web Services and SOA for Developers

Target Population: Systems Architects & Developers
Pre-Requisites: None, although basic knowledge of a programming language such as Java, C# or Visual Basic would be helpful for hands-on exercises.
Duration/Format: 2.5 Days. This is a course involving lectures and hands-on exercises, delivered by an expert instructor.

Course Description

This two and a half day course is designed to introduce developers to Web services and teaches how to architect, create and deploy Web services in either a .NET or J2EE environment. Students are taught how to construct Web Services during a variety of hands-on exercises designed to accelerate their understanding of the technology.

Objectives

Upon the completion of this two and a half day course, the participants will be able to:

Describe Web services and how they enable application integration.
Understand and work with the key Web services technologies of XML, SOAP, WSDL and UDDI.
Understand how to present legacy backend systems as Web services.
Architect, build and deploy basic Web services applications in either a .NET or J2EE environment, depending on the students' preferences.

Detailed Course Content

Web Services - Setting the Stage

A simple live interactive scenario
Points to be made about the demo

Why Web Services?

Different reasons for different people!
- Cost-centric - largest IT cost is labor
- Integration-centric
- Business-driven
- Reuse-centric
- The answer is always a mixture
Web Services are not for everything!
Summary

Web Services Technologies (including lab exercises)

XML Technologies
- Base XML documents
- XML Schema
- XSLT (Transformations)
- Parsing approaches (DOM, SAX)
SOAP
- General processing model
- Structure of SOAP Messages
- Header, Body and Fault elements
WSDL
- Development vs Execution Time Model
- Components of WSDL
- Sample WSDL file examination
UDDI
- Registering services
- Discovering services through registries

Web Services Tools and Demo (including lab exercises)

WS Development Approaches
- Top down - starting with WSDL
- Bottom up - integrating existing systems
Typical WS Development/Deployment Components
- Tool sets
Development Demo Scenarios
- Automatic client generation
- Hello World - VB.NET client creation
- Stock Quote - VB.NET client creation
Server Code Generation
Tools To Create WSDL files
Web Services Interoperability Demo (WSID)
- Live demo with remote services
- Services which invoke other services