3. Choose your community of testers

To be effective, a community must include :

• lead users: users in the vanguard of a field, with a strong interest in innovating for themselves, imagining and developing solutions that meet expectations that will subsequently spread to all users in the field;

• opinion leaders;

• convinced users ;

• refractory ;

• members of organized structures: scientists, universities, competitiveness clusters ;

• free electrons ;

• those "connected" on the Net to social networks, blogs...

For example, for your LEGO, don't just include children, but also parents, scientists, primary school representatives...

...