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Software Testing and Quality Assurance Theory and Practice Chapter 17 Software Quality - page 6 / 28

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Software Testing and QA Theory and Practice (Chapter 17: Software Quality)

© Naik & Tripathy

6

Five Views of Software Quality

Product view

Hypothesis: If a product is manufactured with good internal properties, then it will have good external properties.

One can explore the causal relationship between internal properties and external qualities.

Example: Modularity enables testability.

Value-based view

This represents the merger of two concepts: excellence and worth.

Quality is a measure of excellence, and value is a measure of worth.

Central idea

How much a customer is willing to pay for a certain level of quality.

Quality is meaningless if a product does not make economic sense.

The value-based view makes a trade-off between cost and quality.

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