FIT3175 Lecture Notes - Lecture 7: Mental Model, Keyboard Shortcut, Natural Language

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Week 7 Interaction and Its Types
Interface ensures interacon of people with the system
Physical Interaction: pressing keys, clicking a mouse, touching a screen
Perceptually: what a person can see, hear and touch
Conceptually: people interact with the system/device via the mental model of the system
Shneiderman’s Types of Interaction
Instructing
Users make instrucons to a system
Example: Terminals
Conversing
Users communicate with the system
Example: Help System, iOS Siri
Manipulating
Users interact with objects in a virtual or physical space
Example: sound editors
Exploring
Users more through virtual environment or physical space
Example: google street view
Interaction Styles
Provides look and the feel of the user interface components
Command language
Commands are issued one line at a me
Advantages:
Flexibility and speed for expert users
Good for repeve acons as well
Provides sense of control for expert users
Low resource usage
Low overhead
Relavely infrequent screen updates
Disadvantages:
Training is necessary and beginners might feel overwhelmed
Requires recalling exact syntax
Poor error handling
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