1. Introduction In this digital age, Enterprise Architecture (EA) planning is more important than ever before. New computing models such as cloud, mobility, Internet of Things (IoT) and API economy have arisen, and the overall complexity of the organization’s landscape increases continuously. However, quite often conventional Enterprise Architecture Frameworks have been found too complex, too academic and cumbersome to understand. More practical and easier approach with simpler framework is needed. 1.1 The Lean Enterprise Architecture Development (LEAD) Method The Lean Enterprise Architecture Development (LEAD) method is a new style of EA approach. The LEAD consists of a) value chain-based operating model and […]