Using the Data Flow Diagram Elements in Figure $4-13$ page $137,($Gane and Sarson Symbols$)$ perform the following analysis:

Go to the data follow diagram on page $148,$ Figure $4-20($Dron Teq for Shop Management$).$

Identify and list all of the Data Flow Elements.

Group: A$.$ Processes

Name of process number $1$

Name of process number $2$

until all are listed

Group B$.$ Data Flows $-$ Repeat the same information as Group A $-$ Only list the Data Flows that provide data to a Process.

Group C$.$ Data Stores $-$ Repeat the same information as Group A

Group D$.$ External Entities $-$ Repeat the same information as Group A