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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Service layers pattern ： ウィキペディア英語版 Service layers pattern Service Layers is a design pattern, applied within the service-orientation design paradigm, which aims to organize the services, within a service inventory, into a set of logical layers. Services that are categorized into a particular layer share functionality. This helps to reduce the conceptual overhead related to managing the service inventory, as the services belonging to the same layer address a smaller set of activities. ==Rationale== Grouping services into functional layers reduces the impact of change. Most changes affect only the layer in which they're made, with few side-effects that impact other layers. This fundamentally simplifies service maintenance. The service reusability principle dictates that services should be designed to maximize reuse. Similarly, the service composability principle advocates designing services so that they can be composed in various ways. Both principles require that a service contain only a specific type of logic e.g., either reusable or process-specific logic.〔Thomas Erl.(Introducing SOA Design Pattern )(). Date accessed:6 April 2010.〕 Restricting each layer to a particular functionality, simplifies the design of the service. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Service layers pattern」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.