Using Components to Facilitate Stochastic Schedulability Analysis

In this work-in-progress paper we present how Com-ponent Based Software Engineering (CBSE) may be used to facilitate stochastic schedulability analysis of embedded real-time systems, by providing realistic models of execu-tion time distributions. We present our ongoing work regarding the usage of Ex-ecution Time Profiles (ETPs) to represent the timing be-haviour of real-time components. These ETPs are to be used in a tool for stochastic schedulability analysis of em-bedded real-time systems. The tool is intended for real-time engineers to make cost-reliability trade-offs by dimension-ing hardware resources in a cost efficient way to achieve the reliability goals.