Design Patterns

Jun.-Prof. Dr. Mark Hall

Sommersemester 2019

Themen

• Interface Guidelines
• Excise
• Posture

Golden Rules of Interface Design

1. Strive for consistency
2. Cater to universal usability
3. Offer informative feedback
4. Design dialogs to yield closure
5. Prevent errors
6. Permit easy reversal of actions
7. Support internal locus of control
8. Reduce short-term memory load

Usability Heuristics

1. Visibility of system status
2. Match between the system and the real world
3. User control and freedom
4. Consistency and standards
5. Error prevention
6. Recognition rather than recall
7. Flexibility and efficiency of use
8. Aesthetic and minimalist design
9. Help users recognise, diagnose, and recover from errors
10. Help and documentation

Einschränkungen des Gedächtnises

• Sensorisches Gedächtnis
• Kurzzeitgedächtnis
• Langzeitgedächtnis

Chunking

Stacking

Kognitive Last

Planung

• Klares System-Aktivität-Model
• Klare Aktivitätspfade
• Fortschrittsinformation

Umsetzung

• Klar präsentierte Affordances
• Konsistenz
• Unterscheidbarkeit
• Vollständige Informationen

Evaluation

• Feedback vorhanden
• Klar präsentiertes Feedback

Posture - Haltung

• Sovereign Posture
• Transient Posture
• Daemonic Posture

Sovereign Posture

Transient Posture

Daemonic Posture

Excise

• Stützräder
• Visueller Lärm
• Fehler / Warnungen / Bestätigungen
• Navigation

Stützräder

Visueller Lärm

Fehler / Warnungen

Warnungen

Bestätigungen

Navigation

Navigation

Literatur

• Shneiderman, B. and Plaisant, C. (2010). Designing the User Interface. Pearson.
• Nielsen, J. (1994). Heuristic evaluation. In Nielsen, J., and Mack, R.L. (Eds.), Usability Inspection Methods, John Wiley & Sons, New York, NY.
• Cooper, A., Reimann, R. and Cronin, D. (2007). About Face: The Essentials of Interaction Design. Wiley Publishing.

Übungsaufgabe