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Growing Software by Louis Testa

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Error Handling and Messages

Error handling and messaging concern how you process your system's reasonably expected usage problems. Error handling occurs within normal operation of the system and allows for continued usage. It differs from failure modes, as failure modes represent system or product failure cases in which the system operation breaks. With a failure mode, manual intervention is often required for recovery. With error handling, the processing is routine and part of normal product usage. Error messaging describes the message sent to the user when the error is detected and is sometimes used to describe all of error handling.

Error handling is designed as the product is created. When an engineer sees a use case that results in a detectable ...

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