Describe the research project that will create the dataset to give context.
Data documentation should include a description of the spatial extent of your data and the spatial resolution of your dataset or collection to facilitate discovery of your data by users interested in the locations of your study.
Describe the temporal extent of your dataset or collection to allow interested users to ascertain your data are useful.Describe the temporal resolution of your data set or collection to allow potential users to ascertain the data quality and whether the resolution is adequate for their needs.
How to describe the units of measurements for each observation
Prepare and document a plan for assuring the quality of your data, so that you and others can trust they are accurate.