Problems of verifying and validating real time systems

For example you might display, the current simulation time (TNOW), the current number in queue (NQ) or counter value (NC).The resource status (idle, busy, failed, inactive), resource capacity (MR) or number busy (NR) of a resource.Often modelers test the developing model at various stages under the same set of conditions.

Software verification looks for consistency, completeness, and correctness of the software and its supporting documentation, as it is being developed, and provides support for a subsequent conclusion that software is validated.One condition, would be to create a single entity and follow it through your model logic.You could also consider using deterministic times that will allow you to more easily predict outcomes for simple simulation runs.When I reviewed the document I found that even though it was “issued” in Jan. The later sections (4, 5, and 6) still use the term validation generically, but the updated document does distinguish between verification and validation: :1994, which treats “verification” and “validation” as separate and distinct terms.On the other hand, many software engineering journal articles and textbooks use the terms “verification” and “validation” interchangeably, or in some cases refer to software “verification, validation, and testing (VV&T)” as if it is a single concept, with no distinction among the three terms.

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