Lecture 7 Flashcards
1
Q
What are interaction design principles for?
A
They provide a general guidance
- Universally applicable
- High-level
- Often derived from theoretical foundations, e.g. cognitive psychology
- Or based on aspirations e.g. regarding inclusion or sustainability
- Need interpretation and often expertise to apply effectively
e.g. Be consistent
2
Q
What are guidelines, give 3 advantages and 2 disadvantages?
A
Specific applications of principles to particular situations, or accepted ‘rules of thumb’
e.g. Provide an escape to a known place on every screen
Advantages:
- Consistency (same look and feel across all applications)
- Learning (basic commands, icons are familiar)
- Development (ready made building blocks and design guidelines)
Disadvantages:
- Lack of portability
- Can constrain design possibilities and creativity
3
Q
Where do principles and guidelines come from?
A
- Informed by cognitive psychology
- Results of empirical study
- Based on experience and common sense
- Constructed by organisations to project and identity
- Some are aspirational
4
Q
As design becomes more detailed, what must it add?
A
- Decisions about functionality
- Detailed form of devices
- Sequence of actions (designing the interaction)
- How the actions including navigation are triggered (input)
- Visual design: detailed layout, labelling and structure
- Feedback
- Responses to errors
5
Q
What types of things should you think about when designing interactions?
A
Identify all relationships/dependencies between activities:
- Which items need to be completed before others
- Choices that are mutually exclusive
