期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2011
卷号：2
期号：6
页码：2066-2074
出版社：Technopark Publications
摘要：The typical software lifecycle is about 40% design, 20% code, and 40% unit testing. The Clean room lifecycle is 80% design and 20% code and no unit test. And effort estimation using the COCOMO(constructive cost model) is based on the typical software lifecycle. In Detail COCOMO, Plan/requirement 6% to 8% (Effort); 10% to 40%(Time) Product Design 16% to 18% (Effort); 19% to 38% (Time) Programming 48% to 68% (Effort); 24% to 64% (Time) Integration/Test 16% to 34% (Effort); 24% to 64% (Time) is based on typical software development lifecycle model like Waterfall. When Clean room development methodology is used then these effort will be changed and some cost driver are also changed. We attempt to rectify this by promising a COCOMO-style effort model for Clean room software development methodology, thereby providing new insights into the economic impact of incremental approaches to software projects
