Interaction Design
- Designing interactive products to support people in their everyday and working lives.
Goals of ID
- Allows users to carry out tasks safely, effectively, efficiently, and enjoyably.

HCI is worth studying because it aligns both human interests and economic interests.
The HCI discipline includes the study of:
- the use and context of computers
- human characterstics
- computer system and interface architecture
- the development process

History of HCI

人机交互技术 Week 2_History of HCI-LMLPHP

人机交互技术 Week 2_History of HCI-LMLPHP

"As we may think" article in Atlantic Monthly
Identified the information storage and retrieval problem: new knowledge does not reach the people who could benefit from it.
Bush's Memex
- Conceiving Hypertext and the World Wide Web
  - a device where individuals stores all personal books, records, communication.etc
  - items retrieved rapidly through indexing, keywords, cross references,...
  - can annotate text with margin notes comments...
  - can construct and save a trail (chain of links) through the material
  - acts as an external memory
- Bush's Memex based on microfilm recorder
  - but not implemented

"Computing's Johnny Appleseed"
His ideas foretold of graphical computing, point-and-click interfaces, digital libraries, e-commerce, online banking, and software that would exist on a network and migrate to wherever it was needed.
Outlined "man-computer symbiosis"
Immediate goals
- time sharing of computers among many users
- electronic i/o for the display and communication of symbolic and pictorial information
- interactive real time system for information processing and programming
- large scale information storage and retrieval
- facilitation of human cooperation in the design & programming of large systems
- combined speech recognition, hand-printed character recognition & light-pen editing
Long tem visions
- natural language understanding (syntax, semantics, pragmatics)
  - syntax 语法：The study of the rules whereby words or other elements of sentence
  - semantics 语义：The study or science of meaning in language forms
  - pragmatics 语用：The study of language as it is used in a social context and affects the interlocutors(对话者) and their behavior
- speech recognition of arbitrary computer users
- heuristic programming

人机交互技术 Week 2_History of HCI