Constraint Analysis

constraint analysis. (IEEE) (1) Evaluation of the safety of restrictions imposed on the selected design by the requirements and by real world restrictions. The impacts of the environment on this analysis can include such items as the location and relation of clocks to circuit cards, the timing of a bus latch when using the longest safety-related timing to fetch data from the most remote circuit card, interrupts going unsatisfied due to a data flood at an input, and human reaction time. (2) verification that the program operates within the constraints imposed upon it by requirements, the design, and the target computer. Constraint analysis is designed to identify these limitations to ensure that the program operates within them, and to ensure that all interfaces have been considered for out-of-sequence and erroneous inputs.

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