Lesson 4 - Validation: A must-have cornerstone

In a traditional app, QA validates repeatable behavior. When a model is doing the work, the behavior isn't repeatable, so validation has to live inside the app from day one. I learned that the hard way, minutes before a demo.

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Lesson 4 - Validation: A must-have cornerstone

In a traditional app, QA validates repeatable behavior. When a model is doing the work, the behavior isn't repeatable, so validation has to live inside the app from day one. I lear...