A designer has a choice of many models, methods, frameworks, and architectures. There is little consistency between these terms among researchers. Some of the most widely used architectures and frameworks are described with definitions and concepts that distinguish them clearly. This paper proposes a clear definition of these terms, a clear distinction between these and a methodology that will significantly aid in the comparison and evaluation of various enterprise models. A direct benefit of this research is a more clear presentation of how the enterprise modeling community uses enterprise models.