Research on requirements prioritization management of trustworthy software product

Requirements priority set of trustworthy software is an importance activity in product requirements engineering, which is conducive to incremental development and stability of trustworthy software product. From the perspective of comprehensive analysis, this paper analyzes and discusses the connotations of trustworthy software requirement and requirement priority thoroughly, and puts forward three-layer scale priority classification for the general trustworthy software and two-layer scale priority classification for the complex trustworthy software., and also gives the detail process of functional requirements priority set and trustworthy requirements sorting. Finally, this paper analyzes the key factors of requirements priority set.