Software Cost Estimation Using Similarity Difference Between Software Attributes

The apt estimate of the software cost in advance is one of the most challenging, difficult and mandatory task for every project manager. Software development is a critical activity which requires various considerable resources and time. A prior assessment of software cost directly depends on the expanse of these resources and time, which in turn depends in the software attributes and its characteristics. Since there are many precarious and dynamic attributes attached to every software project, the accuracy in prediction of the cost will rely on the prudential treatment of these attributes. This paper deals with the methods of selection, quantification and comparison of different attributes related to different projects. We have tried to find the similarity difference between project attributes and then consequently used this difference measurement for creating the initial cost proposals of any software project that has some degree of correspondence with the formerly completed projects whose total cost is fairly established and well known.