---
title: "TDD Case Studies and research"
url: "https://osherove.com/blog/2008/12/14/tdd-case-studies-and-research.md"
canonical: "https://osherove.com/blog/2008/12/14/tdd-case-studies-and-research.html"
published: "2008-12-14T13:02:50"
updated: "2008-12-14T13:02:50"
tags: ["Agile"]
author: "Roy Osherove"
description: "I’ve always been looking for real research numbers on the effectiveness of TDD. For future reference, there are several listed here: http://biblio.gdinwiddie.com/biblio/StudiesOfTestDrivenDevelopment"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# TDD Case Studies and research

By Roy Osherove December 14, 2008 In [Agile](https://osherove.com/blog/category/agile)

**Historical article** · Originally published December 14, 2008; technical details may be outdated.

I’ve always been looking for real research numbers on the effectiveness of TDD. For future reference, there are several listed here:

[http://biblio.gdinwiddie.com/biblio/StudiesOfTestDrivenDevelopment](http://biblio.gdinwiddie.com/biblio/StudiesOfTestDrivenDevelopment)

## More in Agile

[All posts in Agile](https://osherove.com/blog/category/agile)

- Feb 16, 2009

    ### [Looking for an Agile developer, again!](https://osherove.com/blog/2009/2/16/looking-for-an-agile-developer-again.html)

- Jan 13, 2009

    ### [Unit Testing in VB.NET – with Typemock Isolator (with a free license offer)](https://osherove.com/blog/2009/1/13/unit-testing-in-vbnet-with-typemock-isolator-with-a-free-lic.html)

- Dec 3, 2008

    ### [lowering the adoption barrier for unit testing: doctest in python](https://osherove.com/blog/2008/12/3/lowering-the-adoption-barrier-for-unit-testing-doctest-in-py.html)

- Dec 3, 2008

    ### [Isolation frameworks – lessons from the wild](https://osherove.com/blog/2008/12/3/isolation-frameworks-lessons-from-the-wild.html)


---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

### Social

- X: https://x.com/royosherove
- LinkedIn: https://www.linkedin.com/in/osherove/

### Contact

- Contact form: https://forms.gle/jQSx5KoXvrVA1JCK7

### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/