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Human Computer Interaction (HCI) - Coggle Diagram
Human Computer Interaction (HCI)
What is Human Computer Interaction?
is the study, planning and design of how people and computers work together so that a person’s needs are satisfied in the most effective way (Galitz, 2007).
HCI – Past, Present, Future
HCI Design: Functionality and Usability
Functionality
of a system is defined by the set of actions or services that it provides to its users (provides function needed by users to perform their tasks). However, the value of functionality is visible only when it becomes possible to be efficiently utilized by the user.
Usability
of a system with a certain functionality is the range and degree by which the system can be used efficiently and adequately to accomplish certain goals for certain users. The actual effectiveness of a system is achieved when there is a proper balance between the functionality and usability of a system. Ease of use and learnability.
HCI Design: User Activity
The degree of activity that involves a user with a machine should be thoroughly thought.
The user activity has three different levels: physical, cognitive, and affective.
The
physical
aspect determines the mechanics of interaction between human and computer.
The
cognitive
aspect deals with ways that users can understand the system and interact with it.
The
affective
aspect is a more recent issue and it tries not only to make the interaction a pleasurable experience for the user but also to affect the user in a way that make user continue to use the machine by changing attitudes and emotions toward the user.
What is UCD?
"User-Centered Design (UCD) is a user interface design process that focuses on usability goals, user characteristics, environment, tasks, and workflow in the design of an interface.
“Development proceeds with the user as the center of focus."
Jeffrey Rubin, Handbook of Usability Testing: How to Plan, Design, and Conduct Effective Tests, John Wiley and Sons, Inc., (1984)
"Human-centered design is an approach to interactive system development that focuses specifically on making systems usable. It is a multi-disciplinary activity.“
Importance of User-Centered Design
Satisfy the user with a more efficient and user-friendly experience
Increase loyalty and return visits
Establish a more relevant and valuable website
Create websites that supports rather than frustrates the user
UCD Principles
Early focus on users and tasks
Empirical Measurement and testing of product usage
Iterative Design
UCD Process
understand user needs
establish requirements
prototyping alternative designs
evaluate designs
Holography
Holography is the science and practice of making holograms.
Hologram is a three-dimensional image formed by the interference of light beams from a laser or other coherent light source.
Hologram in Education
Benefits:
Have experts illustrate processes live, in person, in 3D
Connect geographically remote classrooms
Deliver lectures to multiple classrooms, anywhere, at the same time
‘Remote attendance’
Remote access – ‘be there’ in 3D
A whole new dimension to instructional content
Go ‘back in time’ in 3D?
