This glossary supports the following titles: SOA: Principles of Service Design (ISBN: 01323 44823, Prentice Hall) Service-Oriented Architecture: Concepts, Technology, and Design (ISBN: 0131858580, Prentice Hall) Service-Oriented Architecture: A Field Guide to Integrating XML & Web Services (ISBN: 0131 428985, Prentice Hall) For more information about this book series, visit: www.soabooks.com Service Statelessness Service Statelessness is one of eight design principles that is part of the service-orientation design paradigm. The official definition for this principle states the following: "Services minimize resource consumption by deferring the management of state information when necessary." Common concepts and terms associated with the application of this principle include: • active and passive (primary states) • stateful and stateless (primary state conditions) • context, session, and business (state information types) • context data and context rules (context data types) • non-deferred state management • partially deferred memory • partial architectural state management deferral • full architectural state management deferral • internally deferred state management For more information, visit www.soaprinciples.com. See also: - active (primary state) - Service Statelessness - context (state information type) - context data (context data type) - context rules (context data type) - core service logic - design principle - passive (primary state) - Service Composability - Service Reusability - service-orientation - session (state information type) - stateful (primary state condition) - stateless (primary state condition)

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