Data stewards play a role in the data governance within data management. They are a representative for the Data Owner in implementation and day to day operations
Is responsible for keeping a part of the data entities in the domain up to date. In particular orders, person data and location (not in the example) and is also involved in agenda management for the others
Provides support to the customer and takes care of the marketing and the like of the products. Is often involved in the input of the data around a product or a customer