Modeling and evaluating the feasibility of timing constraints under different real-time scheduling algorithms

The objective of the work described here is to provide a software tool to assist real-time system specifiers and designers to predict, at an early stage of the development process, the timing behavior of the system being developed. The timing behavior of the system is dependent on the scheduler which is the central component of any real-time system. Our tool (Simulation of Real-Time systems (SRT)) is used to model the timing aspects of a real-time system and to simulate the system with a particular scheduling policy so as to predict its behavior. This paper will present an overview of the capabilities of the system which is implemented using an object-oriented programming language (Smalltalk-80).