Disadvantages of Database Management System
Posted by Ripon Abu Hasnat on Monday, June 16, 2014 | 0 comments
Although the database system yields
considerable advantages over previous data management approaches, database
systems do carry significant disadvantages. These are-
1. Increased costs.
Database systems require sophisticated
hardware and software and highly skilled personnel. The cost of maintaining the
hardware, software, and personnel required to operate and manage a database
system can be substantial. Training, licensing, and regulation compliance costs
are often overlooked when database systems are implemented.
2. Management complexity.
Database systems interface with many
different technologies and have a significant impact on a company’s resources
and culture. The changes introduced by the adoption of a database system must
be properly managed to ensure that they help advance the company’s objectives.
3. Maintaining currency.
To maximize the efficiency of the
database system, you must keep your system current. Therefore, you must perform
frequent updates and apply the latest patches and security measures to all
components. Because database technology advances rapidly, personnel training
costs tend to be significant. Given the heavy investment in technology and
personnel training, companies might be reluctant to change database vendors. As
a consequence, vendors are less likely to offer pricing point advantages to
existing customers, and those customers might be limited in their choice of
database system components.
4. Frequent
upgrade/replacement cycles.
DBMS vendors frequently upgrade their
products by adding new functionality. Such new features often come bundled in
new upgrade versions of the software. Some of these versions require hardware
upgrades. Not only do the upgrades themselves cost money, but it also costs
money to train database users and administrators to properly use and manage the
new features.
5. Cost of Hardware & Software:
A processor with high speed of data
processing and memory of large size is required to run the DBMS software. It
means that you have to upgrade the hardware used for file-based system.
Similarly, DBMS software is also Very costly.
6. Appointing Technical Staff:
The trained technical persons such as
database administrator and application programmers etc are required to handle
the DBMS. You have to pay handsome salaries to these persons. Therefore, the
system cost increases.
7. Database Failures:
In most of the organizations, all data
is integrated into a single database. If database is corrupted due to power
failure or it is corrupted on the storage media, then our valuable data may be
lost or whole system stops.
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