Information about aspects of an oral history interview; it is essential for the curating, discovery, and management of a collection or interview. In an oral history context, descriptive metadata refers to information about the interview or the topic discussed Technical metadata refers to the technical information that makes up the digital data file containing the interview, such as file type, codec, file size, and resolution. Administrative metadata refers to information related to issues such as rights management. Structural metadata refers to how individual parts relate to a whole. (For more on this, see Oral History and the Digital Age)