Managing Information Access to an Enterprise Information System Using J2EE and Services Oriented Architecture

Chapter 7. Using Web services 195

򐂰 XML Schema Part 1: Structures

򐂰 XML Schema Part 2: Datatypes

򐂰 RFC2246: The Transport Layer Security Protocol Version 1.0

򐂰 RFC2459: Internet X.509 Public Key Infrastructure Certificate and CRL

Profile

򐂰 RFC2616: HyperText Transfer Protocol 1.1

򐂰 RFC2818: HTTP over TLS

򐂰 RFC2965: HTTP State Management Mechanism

򐂰 The Secure Sockets Layer Protocol Version 3.0

For more information about the WS-I Basic Profile see the following articles:

򐂰 WS-I Basic Profile 1.0

http://www.ibm.com/developerworks/webservices/library/ws-basicprof.html

򐂰 WS-I Usage Scenarios

http://www.ibm.com/developerworks/webservices/library/ws-iuse/

򐂰 Preview of WS-I sample application

http://www.ibm.com/developerworks/webservices/library/ws-wsisamp/

Security and interoperation

At the time that we wrote this book, the Basic Security Profile Version 1.0 was

still a draft document. Thus, we cannot give a WS-I certification for the

WS-Security implementations. Nevertheless, there are many test cases of

interoperability between the implementation by IBM and the implementation by

Microsoft.

IBM is one of three editors of the Basic Security Profile 1.0, along with Microsoft

and Nortel Networks.

7.6 Further information

Because Web services technology is fast growing and touches many fields, it is

impossible to give a complete view of the technology in this redbook. This

chapter discussed Web services as they relate to our purpose in this book. For a

deeper understanding of Web services, this section lists some useful readings.

Note: The WS-I has recently updated the WS Basic Profile to version 1.1. The

content of the document has been reorganized. However, it is equivalent to

the previous version with the addition of published errata.

196 Managing Information Access to an EIS Using J2EE and Services Oriented Architecture

7.6.1 Redbooks from IBM

The Web services topic is widely exposed in many publications of the IBM

International Technical Support Organization. The following are summaries of

those redbooks mentioned in this chapter:

򐂰 Using Web Services for Business Integration, SG24-6583

– Web services technology and standards

– Transactions

򐂰 Patterns: Service-Oriented Architecture and Web Services, SG24-6303 and

Patterns: Implementing an SOA Using an Enterprise Service Bus,

SG24-6346

– The SOA phenomenon: motivations, evolution, and best practices

򐂰 z/OS WebSphere Application Server V5 and J2EE 1.3 Security Handbook,

SG24-6086

– Security issues related to EIS integration

– A brief explanation of the Web Services security

򐂰 IBM WebSphere V5.1 Performance, Scalability, and High Availability

WebSphere Handbook Series, SG24-6198

– Scalability and high availability of the WebSphere platform as the host

environment for Web services

– Performance considerations, with details, on how to enable the cache for

Web services

򐂰 WebSphere Version 5.1 Application Developer 5.1.1 Web Services

Handbook, SG24-6891

– Introduction to WSDL

– Implementing Enterprise Web Services (JSR 109)

– Web services invocation framework

– Web Services Gateway

򐂰 WebSphere Version 5 Application Development Handbook, SG24-6993

describes:

– Web services evolution

– Service-oriented architecture

– Web services approach for a SOA

򐂰 WebSphere Business Integration Server Foundation V5.1, SG24-6318

– Describes this product and its implementation of the BPEL engine

Chapter 7. Using Web services 197

򐂰 Patterns: Serial and Parallel Processes for Process Choreography and

Workflow, SG24-6306

– Describes the flexibility of the BPEL language and implementation

򐂰 Using BPEL Processes in WebSphere Business Integration Server

Foundation Business Process Integration and Supply Chain Solutions,

SG24-6324

– Contains some clear explanations of WebSphere Studio Application

Developer Integration Edition V5.1

򐂰 Exploring WebSphere Studio Application Developer Integration Edition V5,

SG24-6200

– An extensive guide on how the product helps development in a service

oriented manner

򐂰 IBM WebSphere V5.0 Security, WebSphere Handbook Series, SG24-6573

– Describes security issues in detail

7.6.2 Resource on the Web

You can find the following resources on the Web:

򐂰 For a discussion on the fundamental characteristics of a Web services

architecture and the benefits of this approach

http://www-106.ibm.com/developerworks/webservices/library/w-ovr/

򐂰 For a collection of white papers on Web services and SOA

http://www-306.ibm.com/software/solutions/webservices/resources.html

򐂰 For a discussion on the best practices for performance of the Web services

http://www-106.ibm.com/developerworks/library/ws-best9/

򐂰 For a discussion of the benefits of Web services and SOA, see ROI - The

Costs and Benefits of Web Services and Service Oriented Architecture at:

http://roadmap.cbdiforum.com/reports/roi/

򐂰 For information about the SOAP cache see WebSphere Dynamic Cache:

Improving J2EE application performance at:

http://www.research.ibm.com/journal/sj/432/bakalova.html

198 Managing Information Access to an EIS Using J2EE and Services Oriented Architecture