This document describes the initial Data Management Plan (DMP) for the ARCHIVER project. It addresses the project 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 deployments on the resulting ARCHIVER services. The DMPs are using the “Practical Guide to International Alignment of Research Data Management” from Science Europe (https://www.scienceeurope.org/our-resources/practical-guide-to-the-international-alignment-of-research-data-management/): “The aim of the initiative was to develop a set of core requirements for data management plans (DMPs), as well as a list of criteria for the selection of trustworthy repositories where researchers can store their data for sharing. In light of the development of the EOSC and an increasing tendency towards data sharing, these requirements and criteria should help to harmonise rules on data management throughout Europe.” As such, this DMP focuses on data sharing and re-use and in particular on the following issues: What types of data will the project generate/collect? How is personal data managed in the context of the ARCHIVER project? What standards will be used? How will data be exploited and/or shared/made accessible for verification and re-use? Regular updates to this data management plan will be made according to the ARCHIVER project schedule.