LESSON 1 Flashcards
(35 cards)
“mutual or reciprocal action or influence”. If you give something, you will get something in return. Another definition is from the Cambridge Dictionary which states that interaction is “an occasion when two or more people or things communicate with or react to each other”.
Interaction
Refers to the interaction of humans and computers. It can also be linked to the word Interface which where the interaction takes place.Thus, we can say that __ is a cross-disciplinary area that deals with understanding how humans use computers and how computers respond to user actions (feedback).
Human-Computer Interaction (HCI)
GOALS OF HCI
• understand the factors that determine how people use technology
• develop tools and techniques to enable building suitable systems
• achieve efficient, effective, and safe interaction
• put people first
FACTORS IN HCI
• Organisation Factors
• Environmental Factors
• The User
• Comfort Factors
• User Interface
• Task Factors
• Constraints
• System Functionality
• Productivity Factors
Training, job design, politics, roles, work .
Organisation Factors
Noise, heating, lighting, ventilation
Health and Safety Factors
Environmental Factors
Cognitive processes and capabilities
Motivation, enjoyment, satisfaction, personality, experience
The User
Seating, equipment, and layout.
Comfort Factors
Input devices, output devices, dialogue structures, use of colour, icons, commands, navigation, graphics, natural language, user support, multimedia,
User Interface
Easy, complex, novel, _ allocation, monitoring, skills
Task Factors
Cost, timescales, budgets, staff, equipment, buildings
Constraints
Hardware, software, application
System Functionality
Increase output, increase quality, decrease costs, decrease errors, increase innovation
Productivity Factors
COMPONENTS OF HCI
a. Human
b. Computer
c. Interaction
It refers to a person or group that uses the computer system.
Human
It refers to any technology ranging from small devices such as mobile phones to large scale computers. It can also be a website or anything with interface.
Computer
It is the process when a user makes an action and the computer gives a response or feedback.
Interaction
Is one of the key concepts in HCI. It is concerned with making systems easy to learn and use. Is a discipline that software designers can follow to evaluate a business system, website, or mobile application. It is about creating effective user interfaces.
Usability
According to__ , a usable system is defined by 5 quality components
Nielsen Norman Group
5 quality components of usability
- Learnability
- Efficiency
- Memorability
- Errors
- Satisfaction
Is it easy to learn?
Learnability
How quick can they perform a certain tasks once they know how to use the application?
Efficiency
Are the commands, controls, and other functions easy to remember?
Memorability
How many errors do users make when using the application?
Errors
