Wednesday, February 20, 2019
Mr. Doe
* 1. ascertain over the scope statement (PE Figure 4-1). If you were an employee at Petries Electronics, would you motivation to work on this catch? Why or why non? The project scope statement is to describe a high aim overview of the project size, duration, and outcomes as a summary of the baseline project course of study (BPP) information. A project scope statement and a baseline project plan ar created during project initiation and planning * 2. If you were part of the trouble aggroup at Petries Electronics, would you approve the project outlined in the scope statement in PE Figure 4-1?What changes, if whatever, need to be do to the document? * 3. Identify a preliminary set of tangible and impalpable costs you think would occur for this project and the system it describes. What intangible benefits do you anticipate for the system? Cost Benefit Analysis Spreadsheet Alternative C Chapter 5 Electronics Case * 1. What do you think are the sources of the information Jim and his team collected? How do you think they collected all of that information? * 3. If you were expression for alternative approaches for Petries customer loyalty program, where would you look for information?Where would you perplex? How would you know when you were breake? * 5. Why shouldnt Petries staff take a leak their own unique system in-house? Chapter 6 Electronics Case * 1. Are the DFDs in PE Figures 6-1 and 6-2 balanced? Show that they are, or are not. If they are not balanced, how gage they be fixed? * 5. Why is it important for the team to create DFDs if they are not going to write the actual system code themselves? Chapter 7 Electronics Case * 2. Again, review the DFDs you developed for the Petries Electronics occurrence (or those given to you by your instructor).Use these DFDs to identify the attributes of individually of the six entities listed in this case plus any additional entities identified in your answer to Question 1. Write an evident rendering for each attribute. Then, redraw PE Figure 7-1 by placing the six (and additional) entities in this case on the diagram along with their associated attributes. * 3. Using your answer to Question 2, show up which attribute or attributes form the identifier for each entity type. Explain why you chose each identifier. * 4.Using your answer to Question 3, draw the births amid entity types inevi duck by the system. Remember, a relationship is needed only if the system wants data about associated entity instances. induce a meaningful name to each relationship. Specify cardinalities for each relationship and explain how you decided on each minimum and maximum cardinality at each end of each relationship. State any assumptions you made if the Petries Electronics cases you have read so far and the answers to questions in these cases do not provide the evidence to justify the cardinalities you choose.Redraw your final E-R diagram in Microsoft Visio. Chapter 8 Electronics Case * 1. In the questio ns associated with the Petries Electronics case at the end of Chapter 7, you were asked to exchange the E-R diagram given in PE Figure 7-1 to include any other(a) entities and the attributes you identified from the Petries case. Review your answers to these questions, and add any additional needed relations to the document in PE Figure 9-1. * 5. Complete all table and field definitions for the Petries Electronics case database using Microsoft Access.Besides the decisions you have made in answers to the preceding questions, fill in all other field definition parameters for each field of each table. Chapter 10 Electronics Case * 1. Why dont information systems projects work out as planned? What causes the differences between the plan and reality? * 5. Information systems development projects are said to crumble if they are late, go over budget, or do not hold on all of the functionality they were designed to have. Is the customer loyalty program a calamity? Justify your answer. I f not, how can misery be prevented? Is it important to avert failure? Why or why not? Use Case draw (CRM)
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