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TDD Practical Adoption

publish date: 2026/06/19 10:09:34.989443 UTC

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Which of the following statements about TDD adoption in industry are accurate? Select all that apply.

TDD was introduced as part of XP but is now used beyond agile contexts

TDD is considered beneficial but not universally applied in all project types

Some developers write tests after code rather than before, departing from strict TDD

TDD is mandatory under all major software quality standards worldwide

Many development teams adopt a modified form of TDD rather than following it strictly

Correct Answer

(1) TDD was introduced as part of XP but is now used beyond agile contexts

(2) Many development teams adopt a modified form of TDD rather than following it strictly

(3) Some developers write tests after code rather than before, departing from strict TDD

(4) TDD is considered beneficial but not universally applied in all project types

Explanation

TDD originated in XP but has gained mainstream acceptance across both agile and plan-based processes. In practice, many teams adapt TDD - some write tests after rather than before code, or apply TDD selectively. TDD is not mandated by quality standards and is not universally applied, especially in embedded, legacy, or multithreaded system development.

Reference

Software Engineering, Ian Sommerville, 10th edition

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