Session 09: Design rules in HCI

Question 1

What are Design Rules?

Answer 1

Guidelines that help designers enhance the usability of the software product they create.

Question 2

Types of Design Rules?

Answer 2

1. Principles
2. Standards
3. Guidelines

Question 3

Principles?

Answer 3

High-level, abstract rules that provide broad guidance on good design practice.

1. Consistency : Similar elements behave in predictable ways across the interface

2.** Feedback**: Provides users clear, immediate response to their actions

3. Visibility of System status : Always keep users informed about what is going on
4. Match between system and real world : The system should use language and concept familliar to the user, rather than system-oriented terms.
5. User control and freedom : User should have freedom to leave any unwanted state of system which entered or choose mistakenly
6. Error prevention : Design systems prevents problems from occuring in the first place.
7. Help users Recognize, Diagnose, Recover from errors : Error messages should be displayed in understandable plain language rather than code, with indicating the problem and solution.
8. Help and Documentation : Provide help and documentation guidelines to search and information easily

Question 4

Standards?

Answer 4

Specific, authoritative rules established by national or international parties.

1. ISO 9241
2. WCAG : Web Content Accessibility Guidelines
3. ANSI / HFES 100

Question 5

Guidelines?

Answer 5

Provide flexible, context-specific advice that can be adapted to fit various design scenarios.

1. Nielson’s visibility heuristics
2. Microsoft’s UX guidlines
3. Apple human interface guidlines
4. Google motion design guidelines

Question 6

Key Heuristics (Nielsen’s heuristics) in HCI?

Answer 6

1. Visibility of system status
2. Match between system and the real world
3. User control and the freedom
4. Consistency and Standardsd
5. Error prevention
6. Flexible and Efficiency of use

Question 7

Key Golden Rules in HCI?

Answer 7

1. Strive for consistency
2. Enable frequent users to use shorcuts
3. Offer informatice feedback
4. Offer error prevention and Simple error handling
5. Reduce short term memory load

Question 8

Primary benifits of using Design patterns?

Answer 8

1. Reusability
2. Consistency
3. Efficiency
4. Communication

Question 9

Types of Design patterns in HCI?

Answer 9

1. Structural patterns
2. Behavioral patterns
3. Functional patterns
4. Aesthetic patterns