Abstract
<jats:p>In the context of accelerated digital transformation, data management and integration are becoming particularly important when changing the corporate architecture. Modern organizations operate in complex IT landscapes where applications and platforms are closely interconnected. The article discusses the theoretical and applied aspects of data management and integration using the example of three cases from CGO Consulting. The architecture of business processes related to the training of employees and external participants is formalized using the ArchiMate language. The projects included the complete replacement of the information system, the transition from monolith to microservice architecture, and the introduction of a hybrid integration model based on the ESB bus. GAP analysis was performed for each case, problem areas and critical points of integration were identified, architectural solutions and transition models were proposed. It is concluded that the combination of a methodological framework and practical examples allows for a deeper assessment of the impact of data management and integration on the sustainability and adaptability of corporate architecture.</jats:p>