A Metrics Driven Design Approach for Real Time
Environment Application
Mahmood Ahmed and Muhammad Shoaib
Department of computer science and engineering,
University of engineering and technology lahore, Pakistan.
Abstract: Design of real
time environment application is the most exigent task for the designers comparing
to non real time application design. The stringent timing requirement for task
completion is the problem to handle at design time. The design complexity is
increased manifolds when object oriented design methods are used and task
deadlines are introduced at design stage. There are many design methodologies
available for the real time systems but as far as the researcher is concerned none
addresses all the problems of real time system design specially the issues of
deadline inheritance and dynamic behavior of system if deadlines are introduced
at early stages of the design. Most of the methodologies leave the task of
handling the timing constraints for the implementation phase at the programming
language level. In this paper we have proposed a design approach incorporated
with our novel design metrics verification for measuring the design of real
time environment applications. The metrics are measured for design of a real
time weapon delivery system and it is illustrated that how design quality can
be assessed before implementation.
Keywords: Deadlines, timed state statecharts,
design metrics, real time systems
Received November 26, 2011; accepted June 11, 2012