KISS Principle
KISS Principle is a software engineering concept for choosing the simplest design that solves the current problem so mobile teams ship maintainable systems.
This definition sits in our Software Engineering glossary cluster alongside SOLID Principles and DRY Principle.
Definition of KISS Principle
KISS Principle in practical software engineering means choosing the simplest design that solves the current problem. For lean teams, results are strongest when each cycle tracks lines of code removed after simplification passes instead of architecture theater. A recurring failure mode is enterprise patterns in a three-screen MVP, which slows delivery and increases production risk.
Why KISS Principle matters
- It gives a concrete lever to improve lines of code removed after simplification passes with limited senior bandwidth.
- It connects code quality, API design, and team process to outcomes.
- It reduces rework by making tradeoffs explicit before scale bites.
- It prevents enterprise patterns in a three-screen MVP from compounding into release-blocking debt.
Example: KISS Principle on a mobile product team
An engineering team applies KISS Principle by focusing on team drops custom state machine for straightforward loading flags. After the next release, they review movement in lines of code removed after simplification passes and adjust standards or tooling.
Related terms for KISS Principle
Terms that reference KISS Principle
Common questions about KISS Principle
How should a small team adopt KISS Principle without overengineering?
Start where lines of code removed after simplification passes hurts most and apply KISS Principle to that module or API first. Document the decision, measure impact, then expand only if payoff is clear.
What is the most common mistake with KISS Principle?
The common trap is enterprise patterns in a three-screen MVP. When this happens, velocity drops and incidents rise while teams debate patterns instead of shipping.
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