What is the purpose of the model?

        Every model has to start from a clear question, problem, or hypothesis. Therefore, ODD  starts  with  a  concise  summary  of  the  overall  objective(s)  for  which  the  model  was developed. Do not describe anything about how the model works here, only what it is to be used for. We encourage authors to use this paragraph independently of any presentation of the purpose in the introduction of their article, since the ODD protocol should be complete and understandable by itself and not only in connection with the whole publication (as it is also the case for figures, tables and their legends). If one of the purposes of a model is to expand from basic principles to richer representation of real-world scenarios, this should be stated explicitly.