Entering as initial data a planivolumetric plan, the computer processes automatically an entire species of projects, according to the criterion of generative  design. 
Totality and parts of the project have been identified taking as reference the thought 
of formal ontology. 
In this experiment, the building is the totality and therefore the parts are: the floors of the building; residential units or cells; the pertaining uncovered surfaces or PUS; 
the vertical connections; the horizontal connections; sides of the cells. 
The resulting algorithm has been edited in Grasshopper (Rhinoceros plugin).