During the Develop stage, the project is approved (by a case company, for example) for further development and one or more of the concepts is developed further.
The team refines one or more of the concepts that will solve the problem or user need identified during the Discover and Define stages. Design methods deployed during this stage include brainstorming, visualisation, prototyping, testing and scenario development. The methods resemble those from the Define stage, but focus more on realisation.
Important activities during this stage are: interdisciplinary and external collaboration, development methods and tests.
Look at this page for methods - look under the specific phase.
During this phase, in the first year of the project for example some English and Danish groups decided to create exer-games for eachother. You can see the exergames below. We tried them out, refined them etc.
Creating the games