Technical Debt is a deeply misunderstood term. It was originally coined at the beginning of Agile time by Ward Cunningham – from 1992:
Shipping first-time code is like going into debt. A little debt speeds development so long as it is paid back promptly with refactoring. The danger occurs when the debt is not repaid.
In the Cunningham definition, Technical Debt is okay when it is paid back promptly. Since his original definition, it has been misused to mean any mess left behind when team members rush through their code base, often because they feel pressure to get more work done faster.
For the non-technical people, the simplest way to imagine the problem is to pretend your developers are in a large gym. Time how long it takes for them to run across the gym and back. (Repeat enough times that the number is stable). Now move a few chairs into the middle of the gym, at random. Ask them to run across the gym again. They’re slower. Repeat. Eventually there are so many chairs they can no longer walk around them, instead they have to crawl to get across the room. The chairs are their technical debt and the additional time taken is the interest your team is paying for that debt.
- The Agile Alliance Debt Analysis Model
- Approaches to refactoring, technical debt and legacy code
- Got Technical Debt?
- The Human Cost of Tech Debt
- Introduction to the Technical Debt Concept – Agile Alliance – source of my Ward Cunningham quote above
- On Technical Debt And Code Smells
- A seamless way to keep track of technical debt in your source code
- Toward a Galvanizing Definition of Technical Debt
- Technical Debt
- Technical Debt Game for non technical people
- Technical Debt Isn’t Technical: What Companies Can Do to Reduce Technical Debt
- Technical Debt, Rewrites, and Refactoring
- When Your Tech Debt Comes Due – From LinkedIn, literally their story
- Working Effectively with Legacy Code – Michael Feathers
- Managing Software Debt: Building for Inevitable Change – Chris Sterling
- Beyond Legacy Code: Nine Practices to Extend the Life – David Bernstein
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