The Measurement of Software Size based on Generation Model using COSMIC FSM

Abstract

The software size measurement plays essential roles in developing a software project to estimate costs, efforts and other resources. It provides the necessary input to estimate the effort at the early stage of the software development process. Thus, COSMIC FSM (Common Software Measurement International Consortium Functional Size Measurement) is one of the well-known methods of FSM which is suitable to estimate the size of software project at the early stage of development process. The industries use not only the standardized methods but also the well-defined modeling notations to measure the functional size of software. Some research has focused on the specific design notations to facilitate the design of the system. Therefore, this paper proposes a new model which is named as a generation model that can be accepted from various types of modeling notations and then these types converted into common general model for calculating the functional size of COSMIC concept. The generation model can help many researchers and estimators to understand the concepts of complex diagram notations easily. Then, the mapping rules define between the COSMIC FSM and generation model to measure the size of software. Finally, the function size results of the system are calculated by using COSMIC method.