There are a couple of question regarding the case study bellow. I understand questions 1-2 however I was a bit stuck on question three. are there any examples or explanations you can maybe show to help me a little with this project.

Students are required to create a fictitious (preferably a manufacturing) company (or use a company with which you are familiar). The company will have the following details:

1. A brief description about the company, including industry information and products.

2. An organizational chart showing clearly the corporate structure.

3. Individual Data Flow Diagram (DFD) for each of the following cycles:
   1. The Revenue cycle
   2. The Expenditure cycle
   3. The Production cycle
   4. The Human Resource cycle

4. Finally all the four cycles should be presented in on integrated diagram.