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A model is the presentation in schematic form, often in a simplified way, of an existing or future state or situation. The modelling technique determines the way in which the situation is represented in a schematic way. Popular modelling techniques are: process model, workflow model, life cycle model.
A method is a systematic approach to achieve a specific result or goal, and offers a description in a cohesive and (scientific) consistent way of the approach that leads to the desired result/ goal. Minimally a method consists of a way of thinking and a way of working. Possible additional components of a method are: management model(s), presentation model(s), support model(s) (prescriptions, instructions, tips, examples, etc.), based on the modelling techniques mentioned above. The meanings of the terms ‘practice’ and ‘model’ are much broader than the term ‘method’.
A framework is an entity between a ‘model’ and a ‘method’. A framework is, or contains, a (not completely detailed) structure or system for the realization of a defined result/goal. Many frameworks comprise one or more models, based on the modelling techniques mentioned above and often based on (best) practices. Compared with methods, frameworks give the users much more freedom regarding the (partial or entire) use of the framework and the use of the models or techniques therein.
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