A formal model of file systems called the advanced access method (AAM), in which a file system is described using the mathematical set concept, is presented. This model, representing the ADT (abstract data type) operations, relies on the concepts of ordered set, powerset and unique identifier (key). It is useful for applications using multimedia and as an access method for a general-purpose database system. The primary version of the AAM system has been implemented on several workstations and personal computers. >
['Kunihiko Moriya', 'Hiroshi Arisawa', 'Toyoaki Suzuka', 'K. Oyanagi']
Advanced file organization and its ADT operations