Lapalme has discussed “Three Schools of Thought on Enterprise Architecture” at IT Professional in 2012. Korhonen and Halén explored more on Enterprise Architecture for Digital Transformation. Schools of Though on EA: Level or Enterprise Architecture Adaptation and Maladaptation Source: Korhonen J.J., Halén M. 2017. Enterprise Architecture for Digital Transformation. IEEE 19th Conference on Business Informatics. DOI 10.1109/CBI.2017.45