· Data Dependence: In computer file-based processing systems, the data stored in file depends upon the application program through which the file was created. It means that the structure of data files is coupled with application program. It is difficult to change the structure of data files or records. If you want to change the structure of data file (or format of file), then you have to modify the application program.
· Data Isolation: In computer file-based system, data is isolated in separate files. It is difficult to update and to access particular information from data files.
· Data Atomicity: Data atomicity means data or record is either entered as a whole or it is not entered at all.