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In software development, a feature model is a compact representation of all the products of the Software Product Line (SPL) in terms of "features". Feature models are visually represented by means of feature diagrams. Feature models are widely used during the whole product line development process and are commonly used as input to produce other assets such as documents, architecture definition, or pieces of code. A SPL is a family of related programs. When the units of program construction are features—increments in program functionality or development—every program in an SPL is identified by a unique and legal combination of features, and vice versa. Feature models were first introduced in the Feature-Oriented Domain Analysis (FODA) method by Kang in 1990.〔Kang, K.C. and Cohen, S.G. and Hess, J.A. and Novak, W.E. and Peterson, A.S., "Feature-oriented domain analysis (FODA) feasibility study", Technical Report CMU/SEI-90-TR-021, SEI, Carnegie Mellon University, November 1990 (download )〕 Since then, feature modeling has been widely adopted by the software product line community and a number of extensions have been proposed. ==Background== A "feature" is defined as a "prominent or distinctive user-visible aspect, quality, or characteristic of a software system or system".〔 The focus of SPL development is on the systematic and efficient creation of similar programs. FODA is an analysis devoted to identification of features in a domain to be covered by a particular SPL.〔 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「Feature model」の詳細全文を読む スポンサード リンク
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