Facilities for maintaining data redundancies against technical failure (back-ups, disk mirroring, etc.).Facilities to structure data within files (predefined record formats, etc).Ownership of files and access control on the basis of ownership permissions.File creation, modification and deletion.Compromise data access speed and data transfer rate withįrom the point of view of an end user (or application) an FMS typically provides the following functionalities (Calleri, 2001): In multiprogramming systems, concurrent access to the data should be allowed with minimal Illegal or potentially dangerous operations on the data should be controlled by the An FMS should guarantee that at any given moment the stored data reflect the operations performed on The FMS data abstractions and access methods should remain unchanged irrespective of the devices involved in data storage. Generality with respect to storage devices.An FMS should provide data management services to the application. The goals of a File Management System can be summarized as follows (Calleri, 2001): Typically, File Management Systems provide the following advantages and disadvantages: Good for database solutions for hand held devices such as Palm Popular FMS’s are packaged along with the operating systems of personal computers (i.e. no support for complicated transactions, recovery, Fits the needs of many small businesses and home
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