Thinking about the characteristics of your dataset will help you create an appropriate data management plan.
A data profile can be as simple as answering a set of questions about your data, covering things such as data format, size of the data set, and potential for reuse.
Adapted from Witt, Michael and Carlson, Jake R., "Conducting a Data Interview" (2007). Libraries Research Publications. Paper 81. http://docs.lib.purdue.edu/lib_research/81