These programs are able to select elements on their own to transform easy schematics into intelligent elements. That allows the architect to get punctilious schematics also from earlier made schemes and that very easily. That way it is possible to transform 2D schematics into 3D models with less toil. Single-line architectural programs (for example Bentley TriForma) simply engineer much more complicated schematics that describe the whole building at once. But all the needed elements are ready to work with for example doors walls all in a geometrical 3D scheme.

The biggest problem is the price of the software which means that they can not afford this kind of architectural software. Bigger companies already use this programs in everyday work as they are safe which means that they have their own back ups to secure that none of the info of the schematics gets lost. That way the software also helps to improve the communication between architect and customer.