<Li> make them available promptly to those (administrators and researchers alike) who have a right and a requirement to see them; </Li> <Li> systematically dispose of records that are no longer required; and </Li> <Li> protect and preserve the information for as long as it may be needed (if necessary, forever). </Li> <P> Important later contributions were made by Frank Upward and his development of the Records Continuum Model . </P>

​three stages of an image record system are