Data Govrenance is a diverse set of activities: from defining the responsibilities of the data through the establishment of internal standards of quality, to arbitration in cases of data sharing. The main goal of Data Governance is to reduce the possibility of occurrence of adverse events in business resulting from poor quality data. Master Data Management is one of the key elements of the concept. The lecture gives an overview of common steps in the development of Data Governance in the company, and guidelines for the introduction of Data Gorvernance concepts. Certain elements of this process will be supported by examples from the Croatian practice.