The informatics nurse is reviewing types of usability studies. Which study consists of a detailed review of a sequence of real or proposed actions to complete a task in a system?
A) Simplified usability tests using early prototypes
B) Cognitive walkthrough
C) Heuristic evaluations or heuristic inspection methods
D) Exploratory test
B) Cognitive walkthrough
Explanation: A) Simplified usability tests using early prototypes includes the use of small numbers of users, typically an early prototype (even paper), and a specific method called "think aloud" protocols.
B) Cognitive walkthrough consists of a detailed review of a sequence of real or proposed actions to complete a task in a system. It compares a developed user interface design (which is actually the designer's model of the tasks) to the users' understanding or model of the work to be done). The method uses think-aloud techniques to elicit users' thought processes while using an actual product.
C) Heuristic evaluations or heuristic inspection methods compare applications against accepted guidelines or published usability principles.
D) An exploratory test is conducted early during development or redesign after very basic or preliminary designs are created.
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