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This glossary supports the following titles:


SOA Design Patterns


Web Service Contract Design & Versioning for SOA


SOA Principles of Service Design

Service-Oriented Architecture: Concepts, Technology, and Design

Modern SOA Infrastructure: Technology, Design, and Governance
SOA with REST
Next Generation SOA: A Real-World Guide to Modern Service-Oriented Computing
SOA with .NET & Azure
SOA with Java
SOA Governance
SOA Security: Practices, Patterns, and Technologies for Securing Services
SOA and Cloud Computing: Practices, Patterns, Technologies


This glossary also supports the SOA Certified Professional (SOACP) program.

For more information, visit: www.soacp.com
and
www.soaschool.com




session data (state information type)

Information used to represent or maintain a connection or correlation between message exchanges is referred to as session data.

A common example of session data when services are implemented as Web services is the use of correlation identifiers in message headers. These values allow exchanges of messages between and across multiple services to remain synchronized and associated with the same overall service activity. The WS-Addressing MessageID element provides an industry-standard means of representing correlation identifiers within SOAP message headers.

Session data represents one of three types of state information related to the application of the Service Statelessness design principle. The other two types are context and business information.




See also:

- Service Statelessness

- active (primary state)

- context (state information type)

- context data (context data type)

- context rules (context data type)

- passive (primary state)

- stateful (primary state condition)

- stateless (primary state condition)
The Prentice Hall Service-Oriented Computing Series from Thomas Erl
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