The Assessment and Foundation of Bell-Shaped  Testability Growth Effort Functions Dependent System  Testability Growth Models Based on NHPP

<div>The diagrammatic drawing of TGEF at trail &amp; in-service stage.</div>

Mathematical Problems in Engineering

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Figure 5

Figure 5: The Assessment and Foundation of Bell-Shaped  Testability Growth Effort Functions Dependent System  Testability Growth Models Based on NHPP 

Figure 5 | The Assessment and Foundation of Bell-Shaped  Testability Growth Effort Functions Dependent System  Testability Growth Models Based on NHPP 