Gall's law

Gall’s Law states that complex systems inherently arise from simpler systems that successfully function and grow over time. In other words, to build a large, intricate system—like an organization or software—you should start with a small, workable version that works well. Once that small version is stable, you can expand and add more features gradually. This approach helps prevent problems and ensures the system remains manageable and effective. Essentially, complex systems are best created by building on a solid foundation of smaller, proven parts.