Status of the dataset or progress of a review frequency with which modifications and deletions are made to the data after it is first produced information about the scope and frequency of updating frequency with which changes and additions are made to the resource after the initial resource is completed date information associated with maintenance of resource maintenance period other than those defined information about the scope and extent of maintenance information regarding specific requirements for maintaining the resource identification of, and means of communicating with, person(s) and organisation(s) with responsibility for maintaining the metadata