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The power of proof for safety-critical systems
Thanks to the machine-readable nature of the formalized requirements, you can directly use them within several verification use cases and dramatically improve the quality and completeness of the verification process.
In a traditional requirements-based testing process, each test case is only evaluated against the requirement from which is was derived. But what if test case N°5 violates requirement N°10? Formal Test performs an automatic cross check of all test cases against all formalized requirements. This allows you to detect side effects without any additional testing effort.
Formal Test is available as an Add-on license for BTC EmbeddedTester BASE.
Formal requirements allow us to obtain a measurable mathematical definition of requirements coverage. Should a particular formal requirement not be fully covered by existing test cases, the Requirements-based Test Generation add-on allows generating missing test cases automatically, providing you 100% coverage for all requirements.
Even with a large number of test cases, it is impossible to cover all potential paths through your software. In other words, one very important question still remains unanswered, even after rigorous testing: “Can my safety requirements be violated?”
Thanks to our unique model checking technology you can obtain a mathematical proof that a given requirement cannot be violated by your software. In other words– there is no combination of input signals and calibration values that could ever drive the system to the unsafe state we’re interested in.
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The power of proof for safety-critical systems
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