基于UML建模技术的功能点度量研究

软件工作量估算是软件项目管理的重要组成部分之一,功能点度量方法逐渐成为该领域的主要方法.本文从UML部件(用例图、类图和顺序图)中识别出功能点度量方法中的事务功能和数据功能,分析其复杂度,最终得出功能点数,进而将功能点度量方法与UML建模技术相结合,实现了UML部件(用例图、类图和顺序图)向功能点的映射,并结合IFPUG的功能点估算步骤,提出了基于UML建模技术的功能点分析步骤.实证结果表明该方法可以进一步精化基于UML建模软件项目的工作量度量结果,便于项目管理人员控制软件项目活动,合理安排人员等资源,可以在一定程度上解决软件项目频繁超支和超时的问题.

A Study on UML Modeling Oriented Function Point Measurement

Software cost estimation is one of the most important parts of project management. Function Point is a main method of this field. This paper identifies transaction and data functions of Function Points from UML artifacts (Use Case Diagram, Class Diagram and Sequence Diagram), analyzes their complexity, then gets the Function Point count, makes combination of Function Point and UML modeling technique and finally makes the mapping from UML artifacts to Function Points come true. Experiment shows that it is useful to make accurate effort estimation for UML modeling projects, control the develop cycle and arrange various material which is helpful to alleviate the frequently met problems-overspend and overtime.