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Gall’s Law



Published on | Prototyping: From UX to Front End — Medium Jorge Arango A rule of thumb for designing complex systems that work. Image by Mark Skipper I’m often in meetings with stakeholders who are either overwhelmed with the complexity they’re facing or entranced by the possibilities before them and yearning to explore them all. In either case, I ask them to focus on the core of the system we’re designing by quoting Gall’s law: “A complex system that works is invariably found to have evolved from a simple system that worked. A