“Hence, and according to such theoretical framework, ERAs can be used for diverse purposes, as for example, being a communication tool among different stakeholders, as a tool for knowledge accumulation and transfer (i.e. train and instruct), as a decision making model to provide guidance on scoping and design implementation issues for future targeted states (i.e. “to-be”) or as high-level description models of the current state-of affairs (i.e. as-is state). In addition, the Niemi and Pekkola also suggest that, in general EA artefacts can be used for other business-IT planning activities”. (Sanchez-Puchol & Pastor-Collado, A First Literature Review on Enterprise Reference Architecture, 2017, s. 10).