Towards Orthographic Viewpoints for Enterprise Architecture Modeling

One of the most important features of enterprise architecture modeling approaches is the set of views and viewpoints they use to convey the properties of enterprise systems -- that is, their viewpoint framework. All mainstream approaches such as Zachman, RM-ODP, TOGAF and Archimate use the notion of independent "concerns" or dimensions to organize their views and viewpoints, but often do so in ways that are inconsistent and overly complex. In this paper we compare the viewpoint framework of one well known Enterprise Architecture Modeling approach, Archimate, to the Orthographic Modeling approach which was developed to apply the idea of dimension-based view identification and selection in a pure, comprehensive form. After identifying weakness in Archimate's viewpoint framework from an orthographic modeling perspective we suggest how the former can be realized by, and adapted for, the latter.