User interface design and software verification and validation
User interface design is the design of user interfaces for machines and software with the focus on maximizing usability and the user experience. focuses on anticipating what users might need to do and ensuring that the interface has elements that are easy to access, understand, and use to facilitate those actions. UI brings together concepts from interaction design, visual design, and information architecture.
They are 19 principles of User Interface Design:
- Clarity is job
- Interfaces exist to enable interaction
- Conserve attention at all costs
- Keep users in control
- Direct manipulation is best
- One primary action per screen
- Keep secondary actions secondary
- Provide a natural next step
- Appearance follows behavior
- Consistency matters
- Strong visual hierarchies work best
- Smart organization reduces cognitive load
- Highlight, don't determine, with color
- Progressive disclosure
- Help people inline
- A crucial moment: the zero state
- Great design is invisible
- Build on other design disciplines
- Interfaces exist to be used
