Testing and assessment

Method: Success metrics

What

A success metric defines how you will measure whether your design meets user needs.

Why

Success metrics ensure you define what your design enables people to do and how to measure its performance.

How to do it

1. Define the outcomes you expect when your design performs well. Invite stakeholders to brainstorm. Your outcomes may be based on your design hypotheses or user needs statements.
2. List specific metrics to measure whether your design is achieving expected outcomes. Consider quantitative and qualitative metrics:
   • Quantitative metrics are numerical indicators, such as time on task or clickthrough rates.
   • Qualitative metrics capture subjective feedback and insights, such as usability ratings or user satisfaction.
3. Determine how you will collect data for each metric. This may involve:
   • User interviews
   • Usability tests
   • Surveys
   • Analytics

Choose metrics that are effective and measurable.

1. Plan who will be responsible for data collection and how often metrics will be reviewed.
2. Establish benchmarks for each metric. Benchmarks show whether the design meets people's needs or should be further refined.
3. Test your design, and evaluate success based on your measurement plan.
4. Analyze the results against your benchmarks. Identify strengths and areas of improvement. Iterate on the design. Refine metrics if necessary.

Time required

2 to 3 hours to brainstorm and select metrics plus time to run the prototypes and collect and analyze the data