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Human Factors: Exam 1 > Intro > Flashcards

Flashcards in Intro Deck (23):
1

Human Factors

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

2

Affordances

Idea that certain things look as if you’re supposed to use them in a certain way

3

Validity

The degree to which an experiment, a procedure, or a measurement represents what it is supposed to represent

4

Reliability

The consistency of measurements

5

Research Methods

Types:
Descriptive
Correlational and Differential
Experimental

6

Experimental designs

Basic designs:
Between subjects
Within subjects

7

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
Designed
Tested
Modified

8

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
Standardize

9

Feedback

Letting the user know they have interacted with the system

10

Gulf of Execution

How well the user can work the system to use it correctly

11

Gulf of Evaluation

How well the user can understand the system to doing what they want it too

12

Constraints

can be used to prevent error

13

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?

14

User Analysis

Who is the User? Characteristics, development personas

15

Function Analysis

Functions represent a general goal, not the actual tasks

16

Task Analysis

What are the specific activities performed by the human when interacting with the system?
Step-by-step

17

Environment Analysis

Where will the tasks be completed and under what conditions?

18

Heuristic Evaluation

Judge the compliance with HFE principles

19

Usability Testing

Have users interact with a system to identify flaws

20

Reaction Time

the amount of time between an event and the persons response

21

Simple Reaction Time

Single response to single event
Stimulus --> Response

22

Recognition Reaction Time

Single response to particular stimuli but not other
Stimulus A --> Response
Stimulus B --> No Response

23

Choice Reaction Time

more than one response to multiple stimuli
Stimulus A --> Response A
Stimulus B --> Response B