This document describes the initial Data Management Plan (DMP) for the HNSciCloud project. It addresses Project administration data collected as part of the execution and management of the Pre-Commercial Procurement (PCP) process within the project as well as data used as part of the scientific use cases to be deployed on the cloud services. The DMP for the scientific use cases is based on the Guidelines on Data Management in the Horizon 2020 document version 2.0 of 30 October 2015. These guidelines state: “Participating projects will be required to develop a Data Management Plan (DMP), in which they will specify what data will be open.” As such, this DMP focuses primarily on data sharing and re-use and in particular on the following issues (Annex 1 of the H2020 DMP Guidelines): • What types of data will the project generate/collect? • What standards will be used? • How will this data be exploited and/or shared/made accessible for verification and re-use? If data cannot be made available, explain why. • How will this data be curated and preserved?