1.1: Introduction to HCI

• Human-computer interaction (HCI) involves the design, implementation, and evaluation of interactive systems in the context of the user's task and work.
• The Ergonomics Research Society was founded in the year 1949; its researchers were called ergonomists.
• Information science and technology plays a big role in the development of HCI.
• HCI draws on many disciplines, but is much accepted as the central concern in computer science & systems design.
• HCI involves the following expertise, but not limited to:

  • Psychology & Cognitive Science - knowledge about perception, cognitive, & problem-solving skills
  • Ergonomics - physical capabilities of the user
  • Sociology - to understand the wider context of the interaction
  • Computer Science & engineering - build the necessary technology
  • Business - for marketing
  • Graphic Design - more effective interface presentation
  • Technical Writing - produce manuals
• For HCI, the underlying principle that forms the basis of views is how people use computers to accomplish work.The three major concerns involved are:

  • people
  • computer
  • tasks that are performed
• Three 'use' words that must be true for all in order for a product to be considered successful:

  • useful - accomplish what is required
  • usable - do it easily & naturally, without danger of error
  • used - makes people want to use it, be attractive, engaging, fun, etc.
• Knowledge about perception, cognitive & problem-solving skills

  psychology & cognitive science
• Build the necessary technology

  Computer Science & engineering
• Input in the human occurs mainly through the senses.
• Output in the human occurs through the motor control of the effectors.
• Five Major Senses:

  • Sight
  • Hearing
  • Touch
  • Taste
  • Smell