
The Parnas principle
The Parnas principle emphasizes designing software in modular components that encapsulate specific functionality. Each module should be independent, with clear boundaries and minimal dependencies on others. This approach makes the software easier to understand, maintain, and adapt, because changes in one module are less likely to impact others. By focusing on separation of concerns, the principle promotes building robust, flexible systems where components can be developed, tested, and modified independently, improving overall quality and reducing complexity.