computational paradigms: Petri nets in EPOS and SPADE Rule based paradigm in MERLIN ALF Marvel EPOS Triggers in ADELE and MVP-L. Languages are typically related to process programs whereas instantiation techniques have been used to construct process scripts. Tool support The meta-modeling process is often supported through software tools, called CAME tools (Computer Aided Method Engineering) or MetaCASE tools (Meta-level Computer Assisted Software Engineering tools). Often the instantiation technique "has been utilised to build the repository of Computer Aided Method Engineering environments". Example tools for meta-process modeling are: Maestro II MetaEdit+ Mentor Example: "Multi-model view" Colette Rolland (1999) provides an example of a meta-process model which utilizes the instantiation and assembly technique. In the paper the approach is called "Multi-model view" and was applied on the CREWS-L'Ecritoire method. The CREWS-L'Ecritoire method represents a methodical approach for Requirements Engineering, "the part of the IS development that involves investigating problems and requirements of the users community and developing a specification of the future system, the so-called conceptual schema.". Besides the CREWS-L'Ecritoire approach, the multi-model view has served as a basis for representing: (a) the three other requirements engineering approaches developed within the CREWS project, Real World Scenes approach, SAVRE approach for scenario exceptions discovery, and the scenario animation approach (b) for integrating approaches one with the other and with the OOSE approach Furthermore, the CREWS-L'Ecritoire utilizes process models and meta-process models in order to achieve flexibility for the situation at hand. The approach is based on the notion of a labelled graph of intentions and strategies called a map as well as its associated guidelines. Together, map (process model) and the guidelines form the method. The main source of this explanation is the elaboration of Rolland. Process model / map The map is "a navigational structure which supports the dynamic selection of the intention to be achieved next and the appropriate strategy to achieve it"; it is "a process model in which a nondeterministic ordering of intentions and strategies has been included. It is a labelled directed graph with intentions as nodes and strategies as edges between intentions. The directed nature of the graph shows which intentions can follow which one." The map of the CREWS-L'Ecritoire method looks as follow: The map consists of goals / intentions (marked with ovals) which are connected by strategies (symbolized through arrows). An intention is a goal, an objective that the application engineer has in mind