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UNDERSTANDING DESIGN RULES FOR INTERACTIVE SYSTEM - Coggle Diagram
UNDERSTANDING DESIGN RULES FOR INTERACTIVE SYSTEM
Interface design
design rules
complement modeling and evaluation
encapsulate understanding and best practice
help us to design for maximum usability
principles
abstract design rules
“an interface should be easy to navigate”
guidelines
advice on how to achieve principle may conflict
“use colour to highlight links”
standards
specific rules, measurable
“MondoDesktop links are RGB #1010D0”
Usability Principles
Learnability
the ease with which new users can begin effective interaction and achieve maximal performance
Learnability (1): Predictability
Learnability (2): Synthesisability
Learnability (3): Familiarity
Learnability (4): Consistency
Learnability (5): Generalizability
Flexibility
the multiplicity of ways the user and system exchange information
Flexibility (1) : Dialogue initiative
Flexibility (2): Multi-threading
Flexibility (3): Task migratability
Flexibility (4): Substitutivity
Flexibility (5): Customisability
Robustness
the level of support provided to the user in determining successful achievement and assessment of goal-directed behaviour
Robustness (1): Observability
Robustness (2): Recoverability
Robustness (3): Responsiveness
Robustness (4): Task conformance
Schnederman’s Eight Golden Rules
Design dialogs to yield closure
Offer error prevention and simple error handling
Offer information feedback
Permit easy reversal of actions
Enable frequent users to use shortcuts
Support internal locus of control
Strive for consistency
Reduce short-term memory load