<Ul> <Li> Processes of the same nature that are classified together into a model . </Li> <Li> A description of a process at the type level . </Li> <Li> Since the process model is at the type level, a process is an instantiation of it . </Li> </Ul> <Li> Processes of the same nature that are classified together into a model . </Li> <Li> A description of a process at the type level . </Li> <Li> Since the process model is at the type level, a process is an instantiation of it . </Li>

A model whose realization is within a computer program is an abstract model