There is still a conflict among the definitions, frameworks, and formulation of the digital transformation strategy in the literature. Despite extensive research on Digital Transformation Strategies and Digital Transformation Assessment, there is not a clear and global meta-model describing the general concepts and guidelines of the digital transformation to frame and drive a successful digital transformation. Several digital transformation approaches have been presented in the literature, these approaches are focusing on specific cases and specific concepts. The present paper describes the digital transformation and its relationship with IT governance. It presents how IT governance can lead the digital transformation. A literature review has been conducted on the most well-known IT Frameworks (COBIT, ITIL, CMMI) and their structure in order to provide a standard and known framework by practitioners. This paper proposes an Integrated Methodological Framework for Digital Transformation Strategy Building. The proposed framework is called IMFDS, it is based on IT governance elements (Business Strategic Planning, IT Strategic Planning, IT Organizational Structure, IT Reporting, IT Budgeting, IT Investment Decisions, Steering committee, IT Prioritization Process and IT Reaction Capacity). It provides specific guidelines to help organizations formulating, implementing and monitoring their transformation strategies. IMFDS is articulated across 9 blocks (steps) and 34 processes.