Term
| What types of prototypes exist? |
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Definition
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Term
| What are brainstorming challenges? |
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Definition
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Term
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Definition
1. individual brainwriting
2. Group brainstorming
3. Change perspective with external stimulit
4. repeat |
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Term
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Definition
| ability to discover what a product does, how it works and what operations are possible |
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Term
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Definition
| highly simplified explanation of how a product works, based on several assumptions (model breaks when assumptions not met -> problems while using the product) |
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Term
| Can the conceptual model change? |
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Definition
| Yes, change between persons and within persons (e.g. over time when you learn new things about a product) |
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Term
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Definition
| what the user perceives about the system |
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Term
| How are system image and conceptual model connected? |
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Definition
| If system image is incoherent, incomplete or contradicting -> erroneous conceptual model -> usability problems |
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Term
| What makes a good conceptual model? |
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Definition
- Affordance
- Signifier
- Feedback
- Mapping
- Constraints |
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Term
| How are conceptual model and discoverability connected? |
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Definition
| If there is a good conceptual model, people find out how it works (discoverability) |
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Term
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Definition
| relationship between a physical object and a person |
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Term
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Definition
| mean of signaling the presence of the affordance |
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Term
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Definition
| how the product communicates the results of an action to the user |
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Term
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Definition
| how the relationship between the controllers and the controlled is shown |
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Term
| What are attributes of feedback? |
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Definition
- single or multi channel (visual, auditory, olfactory, gustatory, tactile)
- consistent or contradicting
- immediate or delayed
- informative or ambiguous
- ambient, obvious or obtrusive, distracting |
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Term
| What are attributes of Mapping? |
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Definition
- spatial correspondance
- cultural convention
- biological nature |
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