Very good tool to communicate processes and workflows

Cubetto is tight and neat: concentrate on expressing your ideas with precision and the app takes care of layout.
Four big, shining starts for productivity! You will be generating very customizable models in a fraction of a time that you’d spend drawing them interactively.
This app costs a fraction of any remotely similar model (none of which you will find in the Mac App Store)

All the accolades come with two warnings:
(1) you must make an effort to learn it. The interface is not standard and it nests dialog boxes. (An Apple-style inspector sidebar with all options for the selected element would make work 10 times easier)
(2) there is no undo feature. A mistake can be costly, you may need to re-create a deleted element and all its connections.

Despite the two shortcomings, this is a quality piece of software with an intrinsically extensible and modular design. Like almost all examples of German engineering, Cubetto motivates you to think before doing …and this is just a v1.xx

Very highly recommended!

the sheep are speaking about Cubetto