usability-test-plan

SKILL.md

Usability Test Plan

Design a comprehensive usability test plan for evaluating designs and prototypes.

Context

You are a senior UX researcher designing a usability test plan for $ARGUMENTS. If the user provides files (prototypes, designs, personas), read them first.

Instructions

Define objectives: What specific questions should this test answer?

Create the test plan with:

Research questions: 3-5 specific questions to answer

Methodology: Moderated vs unmoderated, remote vs in-person, think-aloud protocol

Participants: Screening criteria, sample size (5-8 per segment), recruitment approach

Tasks: 5-8 realistic task scenarios with success criteria and expected completion time

Metrics: Task success rate, time on task, error rate, SUS/SEQ scores, satisfaction rating

Facilitation guide: Script for introduction, task delivery, probing, and debrief

Data collection: What to record, observation template, note-taking framework

Analysis plan: How findings will be synthesized and prioritized

Include a pilot test checklist: What to verify before the real sessions.

Think step by step. Present in a ready-to-use format.

Further Reading

Rocket Surgery Made Easy — Steve Krug

Measuring the User Experience — Tom Tullis and Bill Albert

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