Human-centered design

Mental models are schemas of dynamic systems, objects & equipment

• Ex. VCRs, interactive web environments, etc.

long-term memory: design strategies

long-term memory: design strategies

• If information is to be remembered, make it meaningful.

• organize into meaningful associations
• present in multiple modes so that one can reinforce the other
• design in a manner consistent with existing mental models or pre-existing knowledge
• design information to highlight important connections and relationship

• Embed knowledge in the world to support development of accurate mental models; use natural mappings

summary Human Factors implications

• Human systems – memory, attention, perception – provide unique design constraints of which designers should be aware

• Simple, commonsensical approaches to interface and information design

• avoiding clutter
• making things distinct and visible
• reducing cognitive load from extraneous information
• Designing interfaces to accommodate human expectations of the web

• can make a difference in learning from web-based environments

• The more cognitive resources (attention, memory, etc.) that you can focus on the educational task, the better the outcomes –

• HUMAN-CENTERED DESIGN MATTERS

human-centered principles & interface design

• Interface

• Mediator between a user and the underlying system or environment
• Can either facilitate or inhibit use depending upon how well they incorporate human-centered principles

design heuristics Jakob Nielsen

• 10 Design Heuristics

• Visibility of system status
• Match between system and real world
• User control and freedom
• Consistency and standards
• Error prevention
• Recognition rather than recall
• Flexibility and efficiency of use
• Aesthetic and minimalist design
• Help users recognize, diagnose and recover from errors
• Help and documentation

design heuristics: visibility of system status

design heuristics: control & freedom

design heuristics: consistency & standards

design heuristics: error prevention

design heuristics: flexibility & efficiency of use

design heuristics: help & documentation