期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2018
卷号：96
期号：12
出版社：Journal of Theoretical and Applied
摘要：The European ECSS-E-40 standard for the aerospace industry includes maintainability as one of sixteen non-functional requirements for the embedded and real time software. The software maintainability requirements measured internally and externally. According to the ECSS European standards, maintainability requirements are apportioned to set maintainability requirements for lower level products to conform to the maintenance concept and maintainability requirements of the system and the maintainability analysis shall identify the maintainability critical items. This paper propose a new measurement model of the functional size of maintainability requirements of software. This functional size of the maintainability requirements measured using the concepts of the ISO19761: COSMIC standard at an early phase of the software development life cycle. It used as one of the primary inputs for the software effort estimation process. Further, this paper presents the design of software standard etalon to help in development of software products more effectively. An experiment is conducted to verify the applicability of the proposed measurement model to measure the functional size of requirements specifications of an online library software.
