" On ontology is in constituting reference mode to the domain it constitutes. The distinction between descriptive and prescriptive reference mode goes at least back to Wieringa, [2] . More detail and references regarding models and modeling can be found, e. g. , in [3]. II. The consistency of models may be conceptual or physical. Boat Midwest Model In many areas of research conceptual models have become the dominating species, as conceptual models, more easily than physical ones, can be investigated by means of computing. For conceptual models to be the shared property of a research community the concepts they involve must be capable of being shared. "

" Analysis models are in a descriptive reference mode to their originals. (2) prescriptive, i. e. , the model prescribes the original. If the deviation from model to original cannot be tolerated then the original has to be changed. Design models are in a prescriptive reference mode to their originals, i. e. Plan To Build A Model Sail Boat, the implementation. (3) idealizing, i. "