User Experience Flashcards
developed by Nancy Staggers in 2001, applies concepts related to psychology and technology to explain human interactions with computers over a period of time in different contexts.
The human–computer interaction (HCI) framework
The basic exchange of human–computer interactions.
Communication
The primary focus of HCI is
usability related to human performance during interactions with computers in different contexts, such as overall ease of use, difficulty in learning, efficiency, satisfaction, the ability to carry out error-free interactions, and the ability of the computer system to match the tasks.
A key factor in choosing software for a computer system is
the software’s usability
There are three different factors that contribute to software usability.
Learnability
Memorability (or efficiency)
Discovery
The amount of time it takes to learn and figure out how to use the software program.
Learnability
The amount of time it takes the user to perform tasks without having to stop and look up the instructions or use the help feature.
Memorability
The time it takes a user to find specific product features in response to the need for that particular feature.
Discovery
An important aspect of human–computer interaction (HCI) is
usability or ease of use
The three primary goals of usability are
effectiveness, efficiency, and satisfaction
have been developed to help guide the evaluation process.
Heuristic (rule of thumb) evaluation or inspection methods
These are the steps for conducting a usability study:
Defining Purpose
Evaluating constraints
Refining components based on evaluation of human- computer interaction (HCI) framework
determining emphasis
selecting methods
to assess for errors
Performance testing
Errors in execution of steps interfere with outcomes, and misunderstanding of outcomes interferes with perception.
low level errors
The sequence of actions results in input that is not compatible with the computer or the mode results in misinterpretation of input.
Moderate level errors
Output is misunderstood or misinterpreted because of a lack of training or education.
Moderate level errors
Interference with intention occurs because of an inability to make a decision regarding a correct action or an inability to evaluate and interpret outcomes correctly.
High Level errors
one method to determine ease of learning of new technology or applications.
Cognitive Walkthrough
A study to determine each step in a process to complete a task is completed.
Cognitive walkthrough
one method to assess the user’s ability to understand the model and its purpose, to produce the desired actions, and to determine if users understand which is the right action and system feedback.
Cognitive walkthrough
procedure is used while participants use a product and carry out the steps in a process, noting any usability problems, such as the ability to learn the process without formal training.
Think aloud
particularly useful with prototypes or early in a system to identify problems with design or usability.
Cognitive walkthrough
software programs is not the same as usability or utility.
Likeability
is defined as how much an individual enjoys using the program.
Likeability
the usefulness of the program.
Utility
