Flashcards in Intro Deck (23):
The science of understanding the properties of human capability and limitations, and applying this understanding to the design, development, and deployment of systems and services
Idea that certain things look as if you’re supposed to use them in a certain way
The degree to which an experiment, a procedure, or a measurement represents what it is supposed to represent
The consistency of measurements
Correlational and Differential
Three Principles of Usability/User-centered Design
An early focus on the users and their tasks
Empirical measurement of product usage
Iterative design, in which a product is
Norman's 7 principles
Knowledge in the World + Head
Simplify the Structure of Tasks
Make Things Visible
Get the Mapping Right
Exploit the Power of Constraints
Design for Error
Letting the user know they have interacted with the system
Gulf of Execution
How well the user can work the system to use it correctly
Gulf of Evaluation
How well the user can understand the system to doing what they want it too
can be used to prevent error
Front End Analysis
Before any design solutions are generated, answer the following:
Who are the system users?
What are the major functions of the system?
What are the environmental conditions?
What are user preferences and requirements?
Who is the User? Characteristics, development personas
Functions represent a general goal, not the actual tasks
What are the specific activities performed by the human when interacting with the system?
Where will the tasks be completed and under what conditions?
Judge the compliance with HFE principles
Have users interact with a system to identify flaws
the amount of time between an event and the persons response
Simple Reaction Time
Single response to single event
Stimulus --> Response
Recognition Reaction Time
Single response to particular stimuli but not other
Stimulus A --> Response
Stimulus B --> No Response