Data Management Plans typically provide a short description of the data, including amount (if known) and content. Note if the project will be collecting data of a sensitive nature. Data types could include text, spreadsheets, images, 3D models, software, audio files, video files, reports, surveys, patient records, etc.
Consider these questions:
Data, a collection of facts from which conclusions may be drawn, can take many forms. Here are a few examples of the digital data forms and common file formats: