The concept must be visualized in such a way that both the bigger picture and the main choices are clear for the stakeholders. This enables reflection on the concept: what it is, what it implies, and what is in it for others. Often the concept is shown by means of a combination of (persuasive) images that showcase what may be expected. For example, an architecture of underlying parts and some decisive conceptual choices. Also, often a prototype is made that enables testing. In How to test concepts this is explained in more depth.