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Testing embedded systems

You need a model to test embedded systems because they are state-driven and have entities that are interdependent. Arunkumar Balakrishnan explains how to build such a model in this member-submitted tip.

You need a model to test embedded systems, simply because they are state-driven and have entities that are interdependent....

A simple way to build this model is to use an Excel file with the columns of State/Screen, Functions in that screen, Fields in that screen, the Action of each function and the Expected Response.

This model is then used by an automated testing script that reads a "test sequence" to call the required function using the model table. The script then checks that the response is as in the expected response column.

This was last published in December 2007

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