Design Attractors

This is what I call a design attractor. In chaos theory, an attractor is the stable state toward which a system evolves over time. In design, for a button to be a button, it must also be interactive. This is a design attractor. From there, users expect some visual treatment to distinguish it from non-interactive elements. Exactly what that treatment looks like depends on the local agreements within an organization, but once settled, that’s another design attractor.

Source: Design Attractors