Laws of UX · Choice and decisions
Pareto Principle
The Pareto principle states that, for many events, roughly 80% of the effects come from 20% of the causes.
The design-system take
Where the principle shows up in a token, component or pattern decision.
Design the 20% of features and content that carry 80% of usage first; the long tail can wait for progressive disclosure. Analytics, not opinion, decides which 20%.
Adapted from Pareto Principle on Laws of UX — Jon Yablonski.