Research of Requirements Change Propagation of Complex Trustworthy Software Product Based on Interaction
Cheng Ping · Zhongguo guanli kexue · 2010
Requirements change propagation is a key factor to the implementation of complex trustworthy software product evolution.From the perspective of the interaction between trustworthy requirements and functional requirements,a four-stage analysis framework model of requirements change propagation is presented based on four tiers which are the establishment of Requirements Relation Model,the construction of Requirements Dependency Design Structure Matrix,the measurement of requirement change propagation influence and analysis of requirement change propagation influence.The definition of Functional Requirements Influence Relation Matrix,Trustworthy Requirements Influence Relation Matrix and Requirements Variable Transfer Matrix is given.The concrete realization of requirement change propagation is described and analyzed.Adopting embedded monitoring software of aeronautical engine as the example,the paper explains the application of models and method.