Description: Prototyping test is a low cost and quick process in which product or service with limited functionality and interaction is tested with real end-users. Interactive prototype product or service must exist so real end-users or experts can experience it. Prototype can be, for instance,, an interactive mock-up of a web service, which interface looks like a real thing. One can navigate through different screens and see simulated content. Also, the service prototype can consist of role-playing exercise to simulate service encounters. The main aim is to collect feedback on as real kind of user experience as possible, but at a lower cost. Different methods such as interviews, surveys and observations can be used.

R&D service categories: Testing and validation

Key characteristics in living lab context:

  • From rapid prototyping to the MVP
  • IT solutions/Physical and cognitive exercises


  • similar to proof-of-concept but testing higher fidelity solution,
  • identify improvement suggestions and usability test,
  • provides development recommendations based on user/patient/customer experience and needs,
  • identify key measures to investigate in follow-up tests

Methods: survey, observation, demo-session, interview, wizard of oz, usability tests, role playing

Tools: paper prototype, wireframes, interactive mockups, scaled down prototypes, visual dummies close to final (visual UI), video recording, usability questionnaires, eye tracking

Approved by the VITALISE H2020 living labs' consensus report on 30/09/2021


This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101007990

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