Prototype & test

Write a handoff spec

Describe what to build, informed by what testing showed.

How to do it

1. List requirements from the concept.
2. Change them based on test findings.
3. Say what is out of scope and why.

Tip. Because the spec links back through the web, anyone can trace a requirement to the interview behind it.

What you need

Start from:

• Concept
• Test report

It is better with: Prototype.

What you get: Spec

A spec template has these sections:

• Requirements
• Out of scope

Where it fits

• Deliver (Double Diamond): Test the chosen answer with real people and hand it over.

Usually comes after

• Ideate concepts
• Vary the concept
• Run usability tests

What to do next

• Write a readout
• Audit the evidence
• Review as stakeholders
• Write copy options

Templates that use it

• Evaluative study: Does this design work for the people who will use it?
• Double Diamond: A whole project, from understanding a problem to a tested answer.