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Enterprise inventory pattern
In the domain of the service-orientation design paradigm, the Enterprise Inventory is a design pattern by Thomas Erl that answers the question, "How can services be delivered to maximize recomposition?"; the application of this pattern results in a standardized enterprise-wide service inventory〔(Service Inventory )〕 that fosters repeated service composition.〔(Service Composition )〕〔Wajid khattak.(Enterprise Inventory )(). Date accessed: 30 April 2010.〕
== Rationale ==
An SOA adoption usually results in multiple set of services built by various teams as part of automating different business processes spread across diverse departmental boundaries. Each project team might be following different set of standards and implementation architectures〔 (for developing services) that are more relevant to the team's short-term goals and requirements. Although the built services might provide enough opportunities for reuse and recomposition within the same business domain, however, when it comes to composing services from different business domains, there tends to be an impedance mismatch requiring some sort of bridging or transformation logic in between these services. In a way, such services result in standalone solutions that defy the basic characteristics of service-orientation i.e. by not being enterprise-centric. Quite often such distributed service delivery efforts result in the development of redundant services as project teams are not aware of each other’s requirements.
In order to foster an environment whereby all the services conform to a single set of standards, the Enterprise Inventory design pattern is applied that results in a common service inventory that is based on a service-oriented enterprise architecture.〔Mauro. et al. (Service Oriented Device Integration - An Analysis of SOA Design Patterns. ) (), pp.1-10, 2010 43rd Hawaii International Conference on System Sciences, 2010. Date accessed: 5 April 2010.〕 This automatically eliminates any redundancy and paves the way for maximum recomposition of services which could mean development of new solutions with reduced efforts and time.〔Thomas Erl.(Introducing SOA Design Patterns )(). Date accessed: 5 April 2010.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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