Poor utilization of database storage space which might be minimal. Large storage space requirements.
Problem of securing all the redundant data. Though the data in such a database is redundant, it must still be secured from unauthorized access. This task is very difficult to implement because each functional area of an organization holds the data.
Confusion – since data is collected and maintained in so many different places, the same data may have different means in different parts of an organization.
Difficulty in performing updates – to update a redundant data item, one must update all instances of the redundant item in all the department files of an organization. This is clearly hectic.
Compromised system integrity.