Modernity requires organizations to be alert to survival all the time. This means permanent reinvention in terms of products, processes and assets to improve their efficiency, their risk management, their ability to generate value for their customers and for discovering new opportunities. For this, it is necessary to adopt and adapt the digital transformation approach in the architectures of business, data, applications and technological infrastructure. The objective of digital transformation with its different and dynamic architectural modalities such as cloud computing and mobile computing is integrating digital technology with all areas of a company's work by fundamentally changing its way of operating to provide greater value to its customers. To be capable of permanent innovations during and after the Covid-19 pandemic and its massive disruptions, companies need to know themselves effectively in real time; this is only possible through the application of the best governance and management practices of enterprise architectures, within an adequate methodological framework which avoids the risks of technological bias in IT projects. There also has to be an adequate balance of resources between conventional daily operations and the digital transformation projects. The EAM ® or enterprise architectures methodology meets this requirement with an optimal benefit-cost ratio.