Chapter 12: Purchasing- Description Flow No. Purchase requisition sent from inventory control (or various departments) to purchasing PO sent to vendor (2a), inventory control (or various departments) (2b), receiving (2c), and accounts payable (2d) 3 Packing slip (with goods) received from vendor Stock notice (with goods) sent to warehouse Notice of goods receipt sent to accounts payable (5a), general ledger (5b), and purchasing (50) 1. Use the narrative above, using LucidChart draw a context diagram. Explain the importance of a context diagram. 2. Use the narrative above, using LucidChart to prepare a logical Data flow Diagram (DFD) Explain the importance of a Logical dataflow diagram. 3. Use the narrative above, using LucidChart to prepare a physical DFD. Explain the importance of a physical dataflow diagram. Page 20/REV2-3/27/20 4. Explain what the difference is between a Logical and Physical flow diagram. 5. Use the narrative above, using LucidChart to prepare a Systems Flowchart. Explain the importance of a System Flowchart. 6. Explain what the difference is between Data flow Diagrams and the System Flowcharts. 7. Develop an Entity-Relationship (E-R) Diagram for the Purchasing Process. 8. Explain how the E-R Diagram is used to prepare database tables. Also, include explanation of cardinalities. 9. Create several examples of database tables used in the Purchasing Process 10. Create a Control Matrix for the Purchasing process. 11. Explain the importance of creating a Control Matrix for this process. Relate your explanation to the COSO and COBIT frameworks