The IRLDAT project aims to design a national infrastructure to support the active part of the research data lifecycle. The design phase is supported by a selected set of use cases which are providing requirements and testing of the deployed services. The report summarises the use cases selected for the project, and how the collection of user requirements was carried out. The cohort of use cases has been involved in the testing phase of the service for the active data management. The report concludes with the feedbacks received in this first pilot phase which are being used as base for the design and implementation of the national infrastructure for active data management in Ireland.