HCI - 1&2

• is the study of how people interact with computers and how computers are designed to support successful interaction.

• One of the first general-purpose, Turing-complete computers.

• No pleasant interface

• Poor task efficiency

Outdated technology

[Pioneer of HCI] wrote “The Psychology of Everyday Things.”

Psychology of Everyday Things
don norman emphasized good design using:

• affordance

• constraints

• feedback

• visibility

Psychology of Everyday Things
what actions are possible

Psychology of Everyday Things
limits to prevent errors

Psychology of Everyday Things
system response to user actions

Psychology of Everyday Things
making important parts easily seen

Goals of HCI

• • How people use technology efficiently

• • Develop tools and techniques for improvement

• Ensure interaction is Efficient, Effective, and Safe

• put people first

• put interaction first

• Easy to accomplish tasks