基于可维护性的装备软件成本估算模型

Cost estimation for equipment software based on maintainability

为解决装备软件成本估算问题,以装备软件的可维护性为基础,引入软件熵表示装备软件混乱度,从理论上探讨装备软件的可维护性与装备软件成本、装备软件有效代码变动量之间的关系,提出了装备软件成本与开发源代码可维护性需满足的两个假设条件,推导得出基于可维护性的装备软件成本估算模型,并通过对某装备软件项目的成本进行实证分析。分析结果表明:该模型操作简便,适用性较好。

To solve the problem of equipment software cost estimation, this paper introduces the con- cept of software entropy based on equipment software maintainability. Software entropy that indicates the equipment software degree of chaos is measured by software maintainability. This paper discusses theoretically the relationship loetween the maintainability of the equipment software and equipment software cost, and the amount of effective code change for equipment software. Besides, it is proposed that the equipment software development cost and source code maintainability should satisfy two as- sumptions. An equipment software cost estimation model based on the maintainability is deduced. Fi- nally, the empirical analysis result shows that the model is simple and practical.