In the context of quotation processing a 3D model was created based on the documents of the call for tenders. On the basis of the model the quantities were determined, and the tender specification was created. Construction parts and the items of the tender specification were thus linked. In addition to that, different execution alternatives could be shown in this calculation model and be presented to the building owner.
The advantage of model-based quotation processing is an exact determination of quantities and the visualisation of performance contents, which are not possible in traditional quotation processing in 2D. Furthermore, models thus created can be used for rendering.