Human Computer Interaction (HCI)

• Human Computer Interaction (HCI) involves the study, planning, and design of the interaction between people (users) and computers.
• HCI is regarded as the intersection of computer science, behavioral sciences, design and several other fields of study.
• Human computer interaction is a discipline concerned with the design, evaluation and implementation of interactive computing systems for human use and with the study of major phenomena surrounding them. (Association for Computing Machinery)

User Experience (UX)

• UX encompasses all aspects of the end-user's interaction with the company, its services, and its products.
• UX is more than UI or product's usability

User Interface (UI)

• UI facilitates interaction between user and technology
• UI can be: Graphical, Voice-based and Haptic
• UI design is the process of designing the look and feel and functionality of user interfaces.

Usability

• Usability is how well a product's features accommodate users' needs and contexts.
• Usability is effective to use (effectiveness)
• Usability is efficient to use (efficiency)
• Usability is safe to use (safety)
• Usability has good utility (utility) and does what it is supposed to do
• Usability is easy to learn (learnability)
• Usability is easy to remember how to use (memorability)
• User satisfaction is a measurement of usability

HCI / Interaction Design

• HCI / Interaction Design focuses on capabilities, limitations, and needs of people
• HCI / Interaction Design considers psychological factors, ergonomics
• HCI / Interaction Design designs for appropriate interactions
• HCI / Interaction Design creates designs that integrate into people's lives

History of HCI

Timeline of HCI

• 1970: Screenshot of UNIVAC with Apple Computer display
• 1980: The start of personal computing, Xerox star, email (Commodore-64 and Macintosh)
• 1990: Mosaic Netscape 0.9: beyond the desktop (www)
• 2000: Ubiquitous computing
• 2010: Tablets, VR, AI, IOT, collaborative tools
• 2020: ???