TAILIEUCHUNG - Database File System: An Alternative to Hierarchy Based File Systems

Any new driver may be required to take a driving exam in a vehicle representing the same size and weight classification as the driver’s license for which they are apply- ing. All drivers must take a written exam every eight years, except those having no traffic convictions. New drivers age 75 and older and any driver turning 75 or older who is renewing his/her driver’s license must take a driving exam in a representative vehicle. | Database File System An Alternative to Hierarchy Based File Systems O. Gorter University of Twente August 2004 University of Twente The Netherlands Database File System An Alternative to Hierarchy Based File Systems Author O. Gorter Supervisors H. Scholten B. van Dijk . Jansen Copyright 2003 2004 O. Gorter University of Twente Computer Sciences Enschede the Netherlands http Database File System Abstract Over 30 years people worked with hierarchical file systems file systems based on directories and files. These file systems have proven their use but today with gigabytes of storage and millions of files managing files with directories is becoming increasingly difficult. This research presents an alternative to hierarchy based file systems. At the basis of this system is a unified approach to all properties of a file. Combining this approach with a drag and drop user interface creates an alternative that is as usable as directories while in the mean time going well beyond the expressive powers found in hierarchy based file systems. The end result is a file system which makes working with files a lot easier on the user. Emphasis of this systems lies at the user and not the operating system therefor files like shared libraries do not show up in this system these should be stored by other means. The implementation is an abstraction layer above a hierarchy based file system and the two work together in such a way that a high level of backwards compatibility is achieved not rendering current programs useless. This setup has been tested on users and the results indicate that this system is a very valid alternative to hierarchical file systems. O. Gorter .

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