Reasons for Partitioning Data Flow Diagram

Reasons for Partitioning Data Flow Diagram:


1.Different user groups:

• Are the processes performed by several different user groups, often at different physical locations in the company? If so, they should be partitioned into different computer programs.

2.Timing:

• Processes that execute at different times must be in separate programs

3.Similar tasks:

• May be included in the same program

4.Efficiency:

• Several batch processes may be included in the same program for efficiency

5.Consistency:

• Several processes may be included in the same program or job stream for consistency of data.

6.Security:

• May be partitioned into different programs for security reasons.