Compare and contrast the purpose of and techniques used in drawing physical DFDs and logical DFDs.
Answer to relevant Questions“If we document a system with a system flowchart and data flow diagrams, we have over-documented the system.” Discuss fully.Prepare a physical DFD based on the output from Short Problem. a. Prepare a table of entities and activities for Good Buy, Inc. or CentralRisk Insurance Company. b. Construct a context diagram based on the table you prepared in part (a). Use Microsoft Visio or other diagraming software.What is data independence? Why is it important in a comparison of application and database approaches to storing data?What are the comparative advantages of the various data coding types discussed in Technology Summary 5.2 when applied to each of the following? Discuss fully.a. Employee ID numbers b. Customer ID numbers c. Vendor ID numbers ...
Post your question