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Think-aloud Usability Evaluation - Coggle Diagram
Think-aloud Usability Evaluation
Appropriate
At any point in design process to evaluate
Rough ideas through lo-fi prototypes
Developed ideas through hi-fi prototypes
Implemented ideas on actual interface
Walk-up-and-use interfaces with novices
Expert interfaces with skilled users
Characteristics
Uncover relationship between users' thought processes and their actions
Requires well-defined tasks and designed elements that afford the task
Task: high-level tasks (e.g. log in to system, search, update)
Not telling every single step/detail
Requires trained facilitators
Setting
At least 2~3 people
Facilitator
Interacting; guide user through tasks; prompt for user's thought
Observer
Take notes, record critical incidents
Computer
Component laid out in order, for quick access
Camera
Need permission
User
How many users need?
5