Exploring and evaluating product ideas to early discover issues and design opportunities.
Recruit key stakeholders for a workshop: designers, potential users, developers, managers, etc.
Ask them to talk about what they know about the product or service to be designed.
Reenact a typical situation of use via role-playing. Encourage empathy and ask them to speak out loud their ideas.
Request the participants to produce a low fidelity prototype. Use props and artifacts.
Discuss the results. Iterate accordingly.
Due its low cost, it allows designers to show and test potential solutions through active participation of users.