Schedulability analysis for mode changes in flexible real-time systems

Abstract

One important requirement of many real-time systems is the ability to undergo several mutually exclusive modes of operation. By means of a mode change the system changes its functionality over time, thus being able to adapt to changing environmental situations. In order to successfully include mode changes in real-time systems, a mode change protocol with well known real-time behaviour is necessary. The authors provide a new model and related schedulability analysis for mode changes in flexible real-time systems.