Suggest an editImprove this articleRefine the answer for “How does SRP improve application modularity?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**SRP improves application modularity** because it splits the system into small, self-contained components, each responsible for one aspect of behavior. **Key point:** this turns the system into a set of small, independent, understandable, and easily combinable components, from which the architecture can be built and changed without the risk of breaking everything else.Shown above the full answer for quick recall.Answer (EN)ImageSRP improves application modularity because it splits the system into small, self-contained components, each responsible for one aspect of behavior. This makes the architecture more flexible and manageable. In detail: ## 1. Each module becomes autonomous When a class is responsible for only one task, it does not depend on a range of unrelated mechanisms (logging, UI, networking, storage). An autonomous module is easier to replace, update, or rework - a direct expression of modularity. ## 2. Components are easy to combine If each module is a complete building block, they can be freely combined in different ways. The application becomes a set of independent elements rather than a monolith where everything is intertwined. ## 3. Hidden coupling between logically different parts is eliminated When logic is mixed inside one class, modules effectively "stick together" - they cannot be changed separately. SRP breaks such ties, creating clear boundaries between functional zones. ## 4. Refactoring and extension become easier Modularity shows up in the fact that new functionality can be added through new classes rather than by changing old ones. The fewer reasons there are to modify existing modules, the more stable the system is. ## 5. Functionality can be moved without rewriting SRP-based modules are easy to reuse in other parts of the project, or even in other projects. Increased reusability is a key sign of good modularity. ## 6. Clear contracts between parts of the system When a module does one thing, its interface becomes simple and predictable. This reduces the chance of misuse and lessens the need for complex coordination. Summary: **SRP improves modularity because it turns the system into a set of small, independent, understandable, and easily combinable components, from which the architecture can be built and changed without the risk of breaking everything else.**For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.