Coupling

Coupling image
Coupling describes how much one module or component depends on another. Low coupling means that modules can work independently with minimal knowledge of each other. High coupling creates tight links where changes in one part can easily break another. 

For example, if a payment service directly relies on the internal structure of the order system, even small changes in that structure could cause failures.

Reducing coupling helps in creating flexible and reliable systems. It allows testers to isolate and verify individual modules without needing the entire system to be in place, which makes testing more efficient.
Explore MoT
From test cases to AI-ready quality data: why structure matters image
Learn how to structure and organize test management data as an AI-ready foundation that gives AI systems richer context for testing insights and workflows.
MoT Software Testing Essentials Certificate image
Boost your career in software testing with the MoT Software Testing Essentials Certificate. Learn essential skills, from basic testing techniques to advanced risk analysis, crafted by industry experts.
This Week in Quality image
Debrief the week in Quality via a community radio show hosted by Simon Tomes and members of the community
Subscribe to our newsletter