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MIS Essentials 1st Edition David M Kroenke - Solutions
What is a data mart, and how does it differ from a data warehouse? LO.1
What are the characteristics of data-mining systems? LO.1
In your own words, explain why a sample can give the same accuracy of results as the entire data set. Under what circumstances would it not give the same results? LO.1
Did this employee have an ethical responsibility to speak up regarding his belief about the quality of the data-mining model? Why or why not? LO.1
If you were this employee, what would you have done? LO.1
If your answers are different for questions 3 and 4, explain why. If they are not different, explain why not. LO.1
Suppose you were this employee and you spoke to your direct boss about your misgivings. Your boss said, “Forget about it, junior.” How would you respond? LO.1
Explain how reporting systems could be helpful to you. LO.1
Show the structure of one or two reports that you could use to identify poorly selling models. How would you structure the reports to identify different sales trends in different regions? LO.1
For one of your reports in question 2, write a description of your requirements for an IT professional. Be as complete and thorough as you can in describing your needs. LO.1
Explain how data-mining systems could be helpful to you. LO.1
How could regression analysis help you determine poorly selling brands? LO.1
Do you believe there is an application for a KM system for identifying poorly selling brands? Why or why not? LO.1
Do you believe there is an application for an expert system for identifying poorly selling brands? Why or why not? LO.1
How do global information systems benefit the value chain? LO.1
What are the challenges of international business process management? LO.1
How does Web 2.0 affect international business? LO.1
How do global information systems affect supply chain profitability? LO.1
What is the economic impact of global manufacturing? LO.1
Summarize the difference between obtaining D&B data by purchasing reports from the D&B Web commerce server and by obtaining D&B data via SOA services. LO.1
Explain how schema validation improves the quality of the data exchange. How can D&B and its Web services customers use schema validation to their advantage? LO.1
D&B is an international organization that provides data to customers worldwide. What advantages does the use of SOA services provide for non-U.S. customers? LO.1
How does the D&B Web services interface give D&B a competitive advantage over other data providers? LO.1
Do you agree that buying in on a time-and-materials project is always unethical? Explain your reasoning. Are there circumstances in which it could be illegal? LO.1
Suppose you learn through the grapevine that your opponents in a competitive bid are buying in on a time-and-materials contract. Does this change your answer to question 1? LO.1
Suppose you are a project manager who is preparing a request for proposal on a time-and-materials systems development project. What can you do to prevent buy-ins? LO.1
Under what circumstances do you think buying in on a fixedprice contract is ethical? What are the dangers of this strategy? LO.1
Explain why in-house development projects are always time-and-materials projects. LO.1
Suppose you ask a senior manager for advice, as described in the guide. Does the manager’s response absolve you of guilt?Suppose you ask the manager and then do not follow her guidance. What problems result? LO.1
Explain how you can buy in on schedule as well as costs. LO.1
What do you think of this developer’s attitude? Do you think he’s unduly pessimistic or do you think there’s merit to what he says? LO.1
What do you think of his idea that management thinks they’re negotiating? Should management negotiate schedules? Why or why not? LO.1
Describe the intangible costs of having an organizational belief that schedules are always unreasonable. LO.1
If this developer worked for you, how would you deal with his attitude about scheduling? LO.1
What do you think managers should do in light of your answer to question 7? LO.1
Assume you have been given the tasks described in MIS in Use 10, page 251. Ensure that everyone on your team understands the terms viral marketing and viral hook. Also ensure that everyone understands the purpose and functions of a social networking application. Using a wiki, document these terms
Visit Facebook or MySpace and find an application that is similar to the one that MRV wants to develop.Do not restrict your search to river-rafting applications(there aren't many). Instead, look for applications that have a similar feel and that probably provide their sponsors a similar value.
Brainstorm with your team possible viral hooks for Let’s Go Rafting. Create a list of five alternatives.Establish criteria for evaluating those alternatives, and then as a team rank those alternatives. Justify your ranking. LO.1
Describe how the SDLC pertains to the development of this application. Describe the tasks that need to be accomplished in each phase. Indicate who should perform the tasks: MRV, an outsource development vendor, or both. LO.1
Develop a list of the top five to seven features of your application. Explain how those features pertain to your viral hook. Explain how those features pertain to MRV’s competitive strategy. Evaluate the four dimensions of feasibility for each of your features. Make assumptions as necessary and
Define criteria for success for your application. Assess how likely your application is to achieve success.Compare the potential benefit of your social networking application to Sue's idea for new Web sites at the start of this chapter. If you owned MRY, which application would you fund? Justify
If you ask users why they did not participate in requirements specification, some of the common responses are the following:a. “I wasn't asked.”b. “I didn’t have time.”c. “They were talking about a system that would be here in 18 months, and I’m just worried about getting the order
Is this opening scenario realistic?a. Is Sue credible? Does she know what she wants?Is she realistic?(Sure.)b. How does she proceed? Does she need a programmer?(No.) .c. What should Sue do? LO.1
Use Figures 10-2 through 10-9 as guides for the students to identify, in general terms, the work that MRV needs to do for each phase of the SDLC:a. Definitionb. Requirementsc. Designd. Implementatione. Maintenance LO.1
Consider the exercise just completed:a. How would Sue have behaved differently if she had known what we just did?b. What role can you see for yourself with regard to systems development?c. As a future business professional, how can you use this knowledge? LO.1
What is the purpose of a database? LO.1
What does a database contain? LO.1
What is a DBMS, and what does it do? LO.1
What is a database application? LO.1
What is the difference between an enterprise DBMS and a personal DBMS? LO.1
What is the purpose of a database?Describe the purpose of a database. Explain when to use a spreadsheet and when to use a database. LO.1
What does a database contain?Explain the hierarchy of data from bytes to tables.Show how a database stores the relationships among rows. Define key and foreign key. Define metadata, and explain how metadata makes databases more useful. LO.1
What is a DBMS, and what does it do? Describe a database application system. Define DBMS. Name three prominent DBMS products. Describe the difference between a database and a DBMS. Explain the three major functions of a DBMS. What is SQL used for? LO.1
What is a database application? Name and describe the components of a database applica- tion. Describe the circumstances that require a special logic for database applications. Describe the lost- update problem. Explain, in general terms, how this problem is prevented. LO.1
What is the difference between an enterprise DBMS and a personal DBMS?Explain the function of an enterprise DBMS and describe its characteristics. Explain the function of a personal DBMS and describe its characteristics. Name the only surviving personal DBMS. Explain the differences between Figure
Where did Kelly go wrong? LO.1
Do you think it was illegal, unethical, or neither for Kelly to take the database home and query the data? LO.1
Does the company share culpability with Kelly? LO.1
What do you think Kelly should have done upon discovering the odd pattern in Jason's orders? LO.1
What should the company have done before firing Kelly? LO.1
Is it possible that someone other than Jason is involved in the arrangement with Valley Appliances? What should Kelly have done in light of that possibility? LO.1
What should Kelly do now? LO.1
"Metadata make databases easy to use for both authorized and unauthorized purposes." Explain what organizations should do in light of this fact. LO.1
To what extent do you agree with the opinions presented here? To what extent are the concerns expressed here justified? To what extent might they be due to other factors? LO.1
What problems do you see with the way that the car salesperson stores address data? What will he have to do if he ever does want to send a letter or an email to all of his customers? LO.1
From his comments, how many different themes are there in his data? What does this imply about his ability to keep his data in a spreadsheet? LO.1
Does the concern about not sharing data relate to whether he uses a database? LO.1
Given the limited information in this scenario, do you think a database or a spreadsheet is a better solution? LO.1
The Transaction Processing Council (TPC) is a not-for-profit corporation that defines transaction processing and database benchmarks and publishes vendor-neutral, verifiable performance data. Visit its Web site at tpc.org.a b.What are TPC-C, TPC-R, and TPC-W?Suppose you work in the marketing
Emerson has standardized on Oracle. The Emerson IT department has a default policy that there will be no other server DBMSs. Users and user departments can have their own Access databases, but no Emerson server is to runa DBMS other than Oracle. LO.1
Dee is becoming a problem to the IT department.She’s been assigned to work with a very junior systems analyst whose principal concern is not to miss any of his upcoming vacation. He thinks Dee's schedule is ridiculous, and he’s not ambitious. It’s possible (even likely) that he’s using the
Movable Type (MT) uses MySQL to manage the blog’s data; MySQL is never visible either to Dee or the salespeople. It’s just a behind-the-scenes data manager. Dee has no intention of developing any other application using MySQL. LO.1
There are two real issues about MySQL:a. Who will install and support it? This is a real issue;Dee intends to contract with Don for support, but that will mean that Don be given access to programs within the Emerson network. Dee forces Emerson to let Don in the network—an action that exposes
Dee needed enough knowledge to explain to the IT department that she wasn't doing anything other than using MySQL to support Movable Type. She needed to point out that there are hundreds of Movable Type installations that successfully run MySQL. The MySQL installation would pose no burden on the IT
The big picture here is not so much to teach students about Oracle versus MySQL, but rather to help them become better consumers of the IT department’s services. This problem is only a sample of many issues that can arise between users and IT professionals. From this situation, students should
Before getting started, the students need to understand the purposes of a DBMS. They also need to know the differences in nature, maintenance, and application of server DBMS products like Oracle(and MySQL) and single-user DBMS products like Microsoft Access. LO.1
There are at least three possible explanations of this situation:a. The IT department'’s objection is legitimate; it wants only Oracle used on its network. It will not support any other server DBMS.b. This issue is bogus, and the IT person is using it to avoid work. In this case, he’s taking
Dee's best response depends on whether 2a, 2b, or 2c is true.a. How can she find out?b. What questions can she ask Don?c. What questions can she ask the IT person? LO.1
If she thinks explanation 2a is true, what can Dee do?a. First, why would the IT department have such a limitation?b. Using empathic thinking, how could Dee approach that department?c. If there is no way that MySQL will be installed, what can Dee do?d. Dee might be wrong. Explanation 2b or 2c might
If Dee thinks explanation 2b is true, what can she do?a. Call the person lazy and say she's going to report him to her manager?b. Get permission to have Don install and support MySQL?c. If Dee admits that she has no idea what a DBMS is or does, how does that weaken her position in this case?d.
If she thinks explanation 2c is true, what can she do?a. Tell the IT person he doesn't know what he's doing?b. Ask the IT person to contact someone else in IT and find out if there are ever exceptions to the Oracle-only policy?c. Ask Don to call the IT person and talk through the issue?d. Other?e.
Wrap up: What should Dee do, and why? LO.1
I think there's little doubt that someone else is involved. Jason is not in a position to force Kelly's firing. In that case, he should have not spoken with Jason. He should have gone as high in the organiza- tion as he could. But, see question 4.
Say nothing to anyone. Hire an attorney with expertise in labor law. Do you think he should "sue the pants off" this company? LO.1
Understand their vulnerability. Treat organizational data as an important asset. Establish data policies and train employees on those policies. (More on this in Chapter 12.) LO.1
Ask the students their opinions. I believe users have a right to information systems that allow them to do their jobs. Something doesn't fit here, though. He objects to the database application because it’s difficult to send form letters, but then he says they're not that important to the way he
He's creating a nightmare for himself. How will he ever disentangle the addresses from the Notes column? What a mess! LO.1
Ithinksome likely themes are Customer, Auto_Interest, Contact, and possibly others.> Multiple themes mean: Use a database! LO.1
Isuspect the concern does relate to using a database, but it ought not. Databases can be private and secure; accounts and roles can be set up so that salespeople do not share each other's data.However, I think he’s hiding his desire not to share his data by complaining about the database. He’s
First, management may not be allowing each salesperson to have his or her own format. They may be trying to discourage it by building the shared database. The question is, who owns the contact data— the salespeople or the dealership? If the salespeople own it, then they can do what they want with
How does organizational strategy determine information systems structure? LO.1
What five forces determine industry structure? LO.1
What is competitive strategy? LO.1
What is a value chain? LO.1
How do value chains determine business processes and information systems? LO.1
How do information systems provide competitive advantages? LO.1
Why is the global economy important today? LO.1
How does the global economy change the competitive environment? LO.1
How does the global economy change competitive strategy? LO.1
How does the global economy change value chains and business processes? LO.1
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