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 active (primary state) The condition of a service after it has been invoked and executed by a service consumer program is referred to as the service's active state. An active service is considered to be actively carrying out functions as per the service capability that was invoked. The term "active" represents one of two primary states a service can exist as, the other being passive. Primary states are of relevance to the implementation of the Service Statelessness design principle that emphasizes the optimization of state data deferral and delegation. Note that an active service may be either stateful or stateless, depending on what form of state management-related processing (if any) it is required to carry out. See also: - Service Statelessness - context (state information type) - context data (context data type) - context rules (context data type) - passive (primary state) - session (state information type) - stateful (primary state condition) - stateless (primary state condition)

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