Hutber’s Law

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Image created with Midjourney. Image prompt: A mechanic enthusiastically upgrading the engine of a car, oblivious to the other parts of the car starting to crumble and deteriorate

Improvement means deterioration.

Hutber's Law, simply put, states that "improvement means deterioration." This law suggests that when we make improvements to a system, it often leads to deterioration in other parts or hides other deteriorations, leading to an overall degradation from the current state of the system. For instance, a decrease in response latency for a particular endpoint could cause increased throughput and capacity issues further along in a request flow, affecting an entirely different subsystem1.

Unpacking Hutber's Law:

Performance Improvement at a Cost

Consider a web application designed to handle a specific number of concurrent users. A performance upgrade might improve the speed of the application but could lead to increased server load, potentially causing the server to crash under heavy traffic.

Features Addition and Software Complexity

Imagine a software product that starts as a simple tool with a specific set of functions. Over time, as new features are added to enhance its capabilities, the software might become more complex and harder to maintain. In this scenario, the "improvements" to the software functionality could lead to a deterioration in its maintainability and usability.

Upgrading Systems and Compatibility Issues

Upgrading a component of a software system can sometimes lead to compatibility issues with other parts of the system. For example, updating a library to a newer version for one feature might lead to conflicts or errors in other features that rely on the older version of the library.

Hutber's Law and Software Development

Understanding Hutber's Law can be crucial in the world of software development. It teaches us to be cautious and consider the wider system when making improvements. The law encourages developers to take a holistic view when upgrading or modifying systems, considering not just the immediate benefits of the improvement but also the potential ripple effects throughout the system.


In conclusion, Hutber's Law serves as a reminder that all changes come with trade-offs. While striving to improve software products, developers must also be mindful of the potential deteriorations that those improvements might cause elsewhere in the system. By keeping Hutber's Law in mind, software developers can make more informed decisions and design better, more robust software systems.