Discoverability
The ability to discover what a system does, how it works, and what operations are possible.
Discoverability is key to learning what's possible.
It defines the ease at which users can find new content or features and directly affects their ability to complete specific tasks. It results from the appropriate application of affordances, signifiers, constraints, mappings and feedback.
Ensure clear focal points
Discoverability is supported through clear focal points, visual hierarchy, prioritizing the visibility of critical elements, navigation systems that are easy to access and understand, and using iconography that holds universal meaning.
Distinction: discoverability vs findability
Findability refers to the ability to find content or a functionality that users already know or assume is present. Discoverability, on the other hand, refers to the ability to discovery new content or a functionality that users are not already aware of.
Origin
This fundamental principle of interaction was defined by researcher, professor and author Don Norman and can be applied to make products and services efficient, effective and delightful to use. It results from the appropriate application of five fundamental psychological concepts: affordances, signifiers, constraints, mappings and feedback.