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Use Case Points : ウィキペディア英語版 | Use Case Points Use Case Points (UCP) is a software estimation technique used to forecast the software size for software development projects. UCP is used when the Unified Modeling Language (UML) and Rational Unified Process (RUP) methodologies are being used for the software design and development. The concept of UCP is based on the requirements for the system being written using use cases, which is part of the UML set of modeling techniques. The software size (UCP) is calculated based on elements of the system use cases with factoring to account for technical and environmental considerations. The UCP for a project can then be used to calculate the estimated effort for a project. == History == The UCP technique was developed by Gustav Karner in 1993 while employed at what was known at the time as Objectory Systems, which later merged into Rational Software and then IBM. The UCP method was created to solve for estimating the software size of systems that were object oriented. It is based on similar principles as the Function Point (FP) estimation method, but was designed for the specific needs of object oriented systems and system requirements based on use cases.〔Murali Chemuturi, (''Software Estimation Best Practices, Tools and Techniques for Software Project Estimators'' ), J.Ross Publishing, 2009, p. 84-87〕〔Dennis, Alan R., Barbara Haley Wixom, and David Tegarden. (''Systems Analysis and Design with UML Version 2.0: An Object-Oriented Approach, Third Edition'' ), John Wiley & Sons, 2009, Chapter 5 - Functional Modeling〕〔Dennis, Alan R., Barbara Haley Wixom, and David Tegarden. ''Systems Analysis and Design with UML Version 2.0: An Object-Oriented Approach, Fourth Edition'', John Wiley & Sons, 2012, Chapter 2 - Project Management〕
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