• Chief Data Officer (CDO): the Chief Data Officer is a Data Manager, who is in charge of the entire data strategy of the company. He/She is the one who will optimize the collection of data, their storage, reliability and quality and optimize their use.

• Data Owner: this is the authority who decides on data access and use. The data owner can be the data designer, one of its users or a third party. The owner of the data may be the designer of the data, one of its users or a third party.
Data stewards can ask data owners to check or complete the value of a field, for example to correct a data quality defect.

• Data Designer: the Data Designer is responsible for defining, describing and classifying information system data. He/She enriches and maintains the dictionary and reference data models. He/She accompanies the definition of the business needs concerning the description and the use of the data. He/She also participates in the development of Data Lineage which is a contribution to the reliability of data processing.

• Data Engineer: builds and maintains the tools and the infrastructures necessary for the analysis of data by data scientists. He/she creates solutions able to process large volumes of data while guaranteeing its security. He/she is the first link in the IT chain.

• Data Scientist: is responsible for bringing together the data designer (business and logical data) and the managers of the processes who use this data.

• Data Quality Manager: must ensure that the company's data is relevant and useful. To do so, he/she must implement data control procedures.

• Data Steward: the Data Steward is the lead manager in a data governance project. He/She plays a key role in its realization. He/She has the knowledge of the data and their metadata. He/She makes them his own and works with the business teams to define the objectives of the data governance project.