Data Redundancy and Inconsistency
Data redundancy is the presence of duplicate data in multiple data files so that the same data are stored in more than place or location. Data redundancy wastes storage resources and also leads to data inconsistency, where the same attribute may have different values.
Program-Data Dependence
Program-data dependence refers to the coupling of data stores in files and the specific programs required to update and maintain those files such that changes in programs require changes to the data.
Lack of Flexibility
A traditional file system can deliver routine scheduled reports after extensive programming efforts, but it cannot deliver ad hoc reports or respond to unanticipated information requirements in a timely fashion.
Poor Security
Because there is little control or management of data, access to and dissemination of information may be out of control. Management may have no way of knowing who is accessing or even making changes to the organization’s data.