One of the reasons to create a DMP is to make the data useful for reuse. But you need to understand if - in your circumstances - Data CAN be openly licensed. Factors to consider:
1. Do you HAVE TO share data as part of a research grant? If so, you will need to release appropriately selected and formatted data using an Open License.
2. Are you required to share data by a publisher? If so, you will need to release appropriately selected and formatted data using an Open License.
3. Are you FORBIDDEN TO share data because of one of the following circumstances:
NOTE: Do not indicate that you will reuse and share others researchers data in your DMP UNTIL YOU HAVE SECURED PERMISSION TO DO THIS.
If you can share data you will need to license it. For a general overview on copyright issues related to licensing see the Guide to Licensing Open Data from the Open Knowledge Foundation.
The following are typical Creative Commons license templates that are applied to data:
If you do not know which license to select, Creative Commons has a good tool to help.
Also be aware that if you have used data licensed under a Creative Commons License by another researcher, when you release that data as part of your research, you need to abide by the terms of the original license. As an example, it the original license was a Share-Alike license, you need to reshare that data under the same license.