Test Case Selection for Simulations in the Maintenance of Real-Time Systems

Document Type

Article

Publication Date

1-1-2000

Description

Many real-time systems are developed and maintained through the use of commercial software products, such as Matlab and MatrixX, that automatically generate source code based on graphical control systems models. Testing these real-time models and the real-time software generated from them presents special problems during maintenance not faced with other forms of software. Very importantly, many of the models and software systems have to be tested through the use of simulations. Huge input and output data sets, the need for testing over a long duration of time (weeks or months), and computationally intensive requirements are just a few of the difficulties. For testing during maintenance in such situations, this paper draws upon field experience to present a set of test types and a strategy for selecting test types used to create series of input values to serve as test cases. Also this paper presents strategies for applying these test types, using the assistance of a free, widely available testing tool that automates test case generation, executes the simulations, and supports the analysis of the test results.

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