Chapter 27 Flashcards
What are types of web applications
- Information-oriented sites
- Transaction-oriented sites
- Portals
What attributes can have Information-oriented sites
- Sovereign attributes
- Transient attributes
What attributes can have Transaction-oriented sites
- Sovereign attributes
- Transient attributes
What are kiosks
These are screens where we can view information or can do transactions. e.g. ATM machines
What is the posture of kiosks
Transient posture
What is the posture of handheld devices
Transient posture
What is the posture of appliances e.g. oven
Transient posture
What is flow
When people can concentrate wholeheartedly on an activity it is known as flow.
What is transparency
Interface must not unnecessarily call attention towards itself.
How to make an interface invisible
- Follow mental models
- Direct, do not discuss
- Keep tools close at hand
- Mode-less feedback
What are mental models
Show user only relevant information.
What is model and mode-less feedback
A dialogue box in work telling word count is model feedback.
A status bar in word showing statistical information.
What is orchestration
Designer should be invisible in an interface. Orchestration means harmonious organization.
How we can improve orchestration
- Adding fineness
- Distinguishing possibility from probability
- Providing comparisons
- Using graphical input
- Reflecting program status
- Avoiding unnecessary reporting
- Avoiding blank slates
- Command invocation vs configuration
- asking less questions
- hiding ejector seat levers
