C790 Nursing Informatics (WGU) Exam 2026-2027 NEWEST
VERSION WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS \VERIFIED 100% ALREADY GRADED A+
BRAND NEW!!
Human-computer interaction (HCI) is the study of how people design, implement, and
evaluate interactive computer systems in the context
of users' tasks and work
usability is often used interchangeably with HCI when the
product is a computer but usability also concerns
products beyond computers. Usability is also more
focused on interactions within a specific context or
environment for a specific product.
Formally, the ISO defines usability as the extent to
which a product can be used by specific users in a
specific context to achieve specific goals with
effectiveness, efficiency, and satisfaction.
allows users to achieve goals
joint cognitive systems imply that information is shared or distributed among
humans and technology.
This framework is useful for examining teamwork in
healthcare where team members work together on
patient care
Health Human-Computer Interaction Humans or products can initiate interactions. The
(HHCI) Framework information is processed through either the
product or the humans according to
characteristics. The
recipient then reacts to the information; for example,
a healthcare provider could read and respond to email
from a patient or a product might process interactions
after the "enter" key is pressed. Iterative cycles
continue as humans behave and
products act according to defined characteristics.
Goals and planning are implicit within the tasks
displayed in the framework.
, Two common techniques are heuristic evaluation and
think-aloud protocol.
Heuristic evaluations compare products against accepted usability
guidelines to reveal major and minor usability
issues.
think-aloud protocol also involves a small number of users and has them
talk aloud while they interact with a product. Users
voice what they are trying to do, indicate where
interactions are confusing, and provide other
thoughts about the product during interactions.
This allows a detailed examination of the specified
tasks, in particular to uncover major effectiveness
issues.
used in conjunction with other techniques
task analysis generic term for a set of more than 100 techniques
that range from a focus on cognitive tasks and
processes (called cognitive task analysis) to
observable user interactions with an application (e.g.,
a systematic mapping of team interactions during a
patient code).
Task analyses are systematic methods that are used
to understand what users are doing or required to
do with a product by focusing on tasks and
behavioral actions of the users and products.
These methods provide a process for learning about
and documenting how ordinary users complete
actions in a specific context.
Methods of task analysis include the following:
•Interviews •Observations
• Shadowing users at their actual work sites •Observing
users doing tasks
• Conducting ethnographic studies or interviews
,Usability Questionnaires System Usability Scale (SUS)- industry standard, 10-scale
Questionnaire for User Interaction Satisfaction
(QUIS)-computer system or application
assessed
Purdue Usability Testing Questionnaire-100 open
ended questions Software Usability
Measurement Inventory (SUMI)-
Exploratory Test conducted early in the systems life cycle after
requirements are determined. These tests are
conducted on very basic or preliminary designs or
redesigns where few resources have been
committed to programming the product. The
objective of an exploratory test is to assess the
effectiveness of emerging design concepts
informal
Assessment Test conducted early in or midway through the
development of a product application. After the
organization and general design are determined,
this kind of test assesses lower-level operations of
the application, stressing the efficiency goals of the
product (versus effectiveness) and how well the task
is presented to users.
conducted whens system partially developed
validation test completed later in the systems life cycle using a more
mature product. This type of test assesses how this
particular product compares to a predetermined
standard, benchmark, or performance measure.
Comparison Study can conduct comparison studies at any point in the
systems life cycle but they are more commonly done
to compare an existing design with a redesign or an
early prototype with a more mature product.
The major objective of this usability test is to
determine which application, design, or product is
more effective, efficient, and satisfying
Steps for Conducting Usability Tests 1) define a clear purpose
, characteristics in health information technology is
referred to
project is a planned undertaking, with a beginning and end
that produces a well-defined result or product.
information system development a planned undertaking that produces a new information
project system
predictive approach to the SDLC assumes that the development project can be
planned and organized and that the new information
system can be developed according to the plan
useful for building systems that are well understood and
defined.
company may want to convert its old networked
client/server system to a newer Web-based system
that includes a smartphone app. In this type of
project, the staff already understands the
requirements very well, and no new processes need to
be added
traditional (70s-90s)
adaptive approach to the SDLC is used when the system's requirements and/or the
users' needs aren't well understood. In this situation,
the project can't be planned completely.
Some system requirements may need to be
determined after preliminary development work.
(late 90s-today)
project initiation (predictive) In predictive approaches, there is a group of activities
that identifies the problem and secures approval to
develop a new system
Project planning (predictive) In predictive approaches, there is a group of activities
that identifies the problem and secures approval to
develop a new system
map out the project's overall structure
analysis (predictive) focuses on discovering and understanding the
details of the problem or need. The intent here is to
figure out exactly what the system must do to
VERSION WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS \VERIFIED 100% ALREADY GRADED A+
BRAND NEW!!
Human-computer interaction (HCI) is the study of how people design, implement, and
evaluate interactive computer systems in the context
of users' tasks and work
usability is often used interchangeably with HCI when the
product is a computer but usability also concerns
products beyond computers. Usability is also more
focused on interactions within a specific context or
environment for a specific product.
Formally, the ISO defines usability as the extent to
which a product can be used by specific users in a
specific context to achieve specific goals with
effectiveness, efficiency, and satisfaction.
allows users to achieve goals
joint cognitive systems imply that information is shared or distributed among
humans and technology.
This framework is useful for examining teamwork in
healthcare where team members work together on
patient care
Health Human-Computer Interaction Humans or products can initiate interactions. The
(HHCI) Framework information is processed through either the
product or the humans according to
characteristics. The
recipient then reacts to the information; for example,
a healthcare provider could read and respond to email
from a patient or a product might process interactions
after the "enter" key is pressed. Iterative cycles
continue as humans behave and
products act according to defined characteristics.
Goals and planning are implicit within the tasks
displayed in the framework.
, Two common techniques are heuristic evaluation and
think-aloud protocol.
Heuristic evaluations compare products against accepted usability
guidelines to reveal major and minor usability
issues.
think-aloud protocol also involves a small number of users and has them
talk aloud while they interact with a product. Users
voice what they are trying to do, indicate where
interactions are confusing, and provide other
thoughts about the product during interactions.
This allows a detailed examination of the specified
tasks, in particular to uncover major effectiveness
issues.
used in conjunction with other techniques
task analysis generic term for a set of more than 100 techniques
that range from a focus on cognitive tasks and
processes (called cognitive task analysis) to
observable user interactions with an application (e.g.,
a systematic mapping of team interactions during a
patient code).
Task analyses are systematic methods that are used
to understand what users are doing or required to
do with a product by focusing on tasks and
behavioral actions of the users and products.
These methods provide a process for learning about
and documenting how ordinary users complete
actions in a specific context.
Methods of task analysis include the following:
•Interviews •Observations
• Shadowing users at their actual work sites •Observing
users doing tasks
• Conducting ethnographic studies or interviews
,Usability Questionnaires System Usability Scale (SUS)- industry standard, 10-scale
Questionnaire for User Interaction Satisfaction
(QUIS)-computer system or application
assessed
Purdue Usability Testing Questionnaire-100 open
ended questions Software Usability
Measurement Inventory (SUMI)-
Exploratory Test conducted early in the systems life cycle after
requirements are determined. These tests are
conducted on very basic or preliminary designs or
redesigns where few resources have been
committed to programming the product. The
objective of an exploratory test is to assess the
effectiveness of emerging design concepts
informal
Assessment Test conducted early in or midway through the
development of a product application. After the
organization and general design are determined,
this kind of test assesses lower-level operations of
the application, stressing the efficiency goals of the
product (versus effectiveness) and how well the task
is presented to users.
conducted whens system partially developed
validation test completed later in the systems life cycle using a more
mature product. This type of test assesses how this
particular product compares to a predetermined
standard, benchmark, or performance measure.
Comparison Study can conduct comparison studies at any point in the
systems life cycle but they are more commonly done
to compare an existing design with a redesign or an
early prototype with a more mature product.
The major objective of this usability test is to
determine which application, design, or product is
more effective, efficient, and satisfying
Steps for Conducting Usability Tests 1) define a clear purpose
, characteristics in health information technology is
referred to
project is a planned undertaking, with a beginning and end
that produces a well-defined result or product.
information system development a planned undertaking that produces a new information
project system
predictive approach to the SDLC assumes that the development project can be
planned and organized and that the new information
system can be developed according to the plan
useful for building systems that are well understood and
defined.
company may want to convert its old networked
client/server system to a newer Web-based system
that includes a smartphone app. In this type of
project, the staff already understands the
requirements very well, and no new processes need to
be added
traditional (70s-90s)
adaptive approach to the SDLC is used when the system's requirements and/or the
users' needs aren't well understood. In this situation,
the project can't be planned completely.
Some system requirements may need to be
determined after preliminary development work.
(late 90s-today)
project initiation (predictive) In predictive approaches, there is a group of activities
that identifies the problem and secures approval to
develop a new system
Project planning (predictive) In predictive approaches, there is a group of activities
that identifies the problem and secures approval to
develop a new system
map out the project's overall structure
analysis (predictive) focuses on discovering and understanding the
details of the problem or need. The intent here is to
figure out exactly what the system must do to
