Session 20 Flashcards
(10 cards)
What’s the design of interfaces
focuses on alternative devices for user interaction, menu structure, and data entry structure
Whats the design of dialogues
focuses on the overall sequence of user interaction
What are the functions of interfaces
- Display options to user
- Ask for input for applications
- Accept input in various formats
- Display output of applications.
- Display results of inputs
- Assist in use of IS through help functions and messages.
What are the methods of interaction (5)
- Command language
- Menu interaction
- Form interaction
- Object based interaction
- Natural language interaction
What are the Guidelines of Input Interface Design
- Make forms easy to fill out.
- Ensure that forms meet the purpose for which they are designed.
- Design forms to assure accurate completion.
- Keep forms consistent, simple, and attractive
What are the input device usability problems
- Visual blocking
- User fatigue
- Movement scaling
- Device durability
- Adequate feedback
- Cursor speed
- Pointing accuracy
Guidelines for Structuring Data Entry
- Never require the user to enter information that is already available within the system
- Provide default values when appropriate
- Make clear the type of data units
- Use character replacement when appropriate
- Place a caption describing the data adjacent to fields
- Provide formatting examples (e.g., decimal
points
What’s important when designing between field nav
flexibility and consistency
Whats a dialogue
sequence in which info is displayed to and obtained from a user
What are the three steps of dialogue design
– Designing the sequence
– Building a prototype
– Assessing usability