Using the written description of the DUB 5 process in the case and the rough diagram at the bottom of the case create your Level 0 DFD. You can submit a DFD that is hand-drawn and scanned use Excel or Visio or another program. 3) Level 1 DFD for the Credit Review Process Going down one level in the DFD focus on the credit review process only and create a DFD for this process. Again you can submit a hand-drawn DFD or use an automated program. Your choice. 4) Observations About the Processes Discuss your observations about the strengths and weaknesses of DUB 5s order processing system.