Lecture 15: Devices and Desires Flashcards
1
Q
Food for thought on poor design…
A
- “Consider the objects that make up our everyday lives. Alas poor design predominates. The result is a world filled with frustration, with objects that cannot be understood, with design that leads to error”
2
Q
John Denver’s fatal plane crash happened due to…
A
- The placement of the fuel selector
3
Q
Population Stereotypes:
A
- Common expectations about the effects of an action
- To increase, turn clockwise
- Generally, the relationship between controls and displays varies in compatibility
4
Q
Don Norman’s action cycle:
A
- Goals: What we want to happen
- Execution: What we do to the world
- The World
- Evaluation: Comparing what happened with what we wanted to happen
5
Q
Gulf of Execution:
A
- “The difference between intention and allowable actions”
6
Q
Gulf of Evaluation:
A
- “The effort that the person must exert to interpret the physical state of the system”
7
Q
Functions > Controls = ?
A
- TROUBLE
8
Q
What is the role of a mental model in learning to operate a device? Is it essential or unnecessary?
A
- Computer video, given instructions means you take longer but acquire some general principles to use on a similar task
9
Q
Good design is possible if…
A
- Possible actions are visible
- Users can evaluate what’s happening
- Controls and displays are compatible
- Users have a good conceptual model
