A sketch is drawn by hand - easy as paper and a pencil.
Each object can be fully described and also #Taged to be examined in terms of its physical, geometrical and architectural characteristics. This examination is helpful for any design since tensile membrane structures can be described in terms of the inherit geometry.
Another nice feature is that Formfinder makes it possible to compare the desired design with projects that have already been implemented. As a result, FORMFINDER is a kind of Searching Machine for Lightweight Membrane Structures.
Knowing what has already been built, when, by whom, where and how is of considerable value and forms the basis for a successful implementation.