Define user profiles, use environments, and workflows
USABILITY VALIDATION
Usability Validation
We define intended users, environments, critical tasks, and use errors, then document observable evidence.
RECOMMENDED FORTeams developing devices and diagnostic workflows where use error can affect safety, performance, or interpretation
SCOPE OF WORK
Scope of work
Before contracting, we confirm the current state and responsibility boundary, then fix only the necessary work in scope.
Link critical tasks and foreseeable use errors to risk controls
Design scenarios, observation forms, probes, and acceptance criteria
Review observations, root causes, residual risks, and improvements
KEY DELIVERABLES
Evidence that remains
We prioritize the connection between requirements, execution, results, and approval over document names.
WORKFLOW
Workflow
We review each stage before moving forward and retain unresolved items in a controlled action register.
- 01
Analyze use conditions
Define real users, tools, spaces, and operational pressures.
- 02
Design critical tasks
Select tasks according to the consequences of use error.
- 03
Observe and record
Observe with predefined intervention rules and preserve the error context.
- 04
Review risk
Separate interface, instruction, and environment causes from user attribution.
RESPONSIBILITY BOUNDARY
Conditions and responsibility boundary
Usability validation is not a satisfaction survey. It creates observable evidence for intended use and risk controls.