What is an interactive system?
A computational system that users can interact with in real-time to achieve a specific goal
What is a User interface?
The part of an interactive system the user can interact with - provides controls and info
Machine-centered view of people vs people-centred view of people
Machine: people are vague, disorganised, distractible, emotional and illogical
People: People are creative, compliant, resourceful, able to make flexible decisions based on context
Machine-centered view of people vs people-centred view of machines
Machines: precise, organised, undistracable, unemotional, logical
People: Dumb, rigid, unimaginative, constrained to make consistent decisions
How do UIs impact people?
- determines what we can do with the system
- how easy or hard it is to work with
- how quick it is to learn
- how safe a system is to use
- performance of user
- how we feel about the system
Utility vs Usability vs User experience
Utility: What a system enables the user to do
Usability: How well a user can use a system to achieve their goals
UX: actual experience of using the system (emotions/satisfaction)
How is HCI good for business?
- improved productivity
- less training
- Enhance customer loyalty
- easier shopping for users
- sign of quality
