The following figures are playing a major role in my career as a designer.

From my point of view its a very usefull figure , it shows the essential elements for a good balanced proposition. How I use it depends on the client’s question and focus. If there is focus on desirability, then this should weigh heavier in the final ranking than the other elements. The trick is to bring all elements in the right balance in order to get to a good solution.

This lean startup approach proved very useful at many stages in the product design process, from the “fuzzy front end” to “industrialization”. The figure above highlights that when you create a product under extreme uncertainty, the create, validate and learn cycle gives you more control concerning the approach of the project and its course.

Lean isn’t simply about spending less money. Lean isn’t just about failing fast, failing cheap. It is about putting a process, a methodology around the development of a product. – Eric Ries