Most aspects of the design are standardized. UI components and screen layouts are primarily combinations of these basic elements.
Why design documentation?
Maintaining documents is usually not everyones favorite activity, but it has a lot of benefits.
- Design is a great planning tool, it allows everyone involved in a project to more intuitively discuss and understand what will be built. Design documentation helps keep this process public and open
- Makes it easier for new contributors to understand, discuss, and improve what was done in the past
- Archiving design decisions and rationale reduces repeat of discussions already settled