Database Design

1. E VO L U TI O N O F F I L E
SY STEM DA TA P RO C E S SI NG
IN LIBRARIES
Manual File System

2. Reasons for studying file systems
 complexity of database is easier to understand
 understanding file system problems helps to
avoid problems with DBMS systems.
 Knowledge of file system is useful for converting
file system to database system

3. • File systems typically composed of collection of
file folders, each tagged and kept in cabinet
• Contents of each file folder are logically related.

4. Manual File System
 was used in paper and pencil systems.
 papers within these systems were organized in
order to facilitate the expected use of the data.
 this was accomplished through a system of file
folders and filing cabinets.

5. FUNCTIONS :
 served as a data
repository for small
data collections.
 Cumbersome for large
collections

6. Advantages:
 a manual filing system cannot be destroyed by
an accidental power loss.
 hackers cannot access a manual filing system
from another computer.
 this helps security issues.

7. Disadvantages
Summarizing data and writing reports takes
a lot time.
 data duplication –
 lack of security

8.  Common errors
 Repetition of work
Slow retrieval of data

9. Thank You!!!