1General Information2Description dataset3.1During the research3.2After the researchThe data should preferably be stored for the long-term in a national or international trusted repository. If this is not possible then the data should be stored by the institutional repository. Contact the intended data repository or archive well in advance about the requirements for depositing the data.3 Data Storage4.1How will the data be documented?4Standards and MetadataTo make data findable and readable in the future and to be able to interpret it the data collection must be provided with descriptive information in the form of metadata. Without metadata – meaning without a good documentation of the data – most data can not be interpreted ore reused properly. Disciplines have developed different standards for metadata. That way datasets stemming from the same discipline can be linked or data can be combined. A widely used standards is the Dublin Core standard. The Digital Curation Centre (DCC) maintains a list of widely used disciplinary meta data standards.5Making data availableNWO expects data stemming from NOW funded research projects to be made openly available for reuse after the end of the project. Following the guidelines of the European Commission the general rule for NWO is: “as open as possible, as closed as necessary”. If there are good reasons not to make data openly available immediately after the project (or only after an embargo period) please motivate here. In addition it is advised to determine which conditions apply to obtain access to your data. Examples of this are agreements that will be made concerning methodology, publications, the access period, availability of data, the costs (handling fee), copyright aspects, etc.