Modern Systems Analysis And Design 8th Edition Joseph Valacich, Joey George - Solutions

Is it good or bad for corporations to rely on vendors for computing support? List arguments both for and against reliance on vendors as part of your answer.
Discuss the role of a centralized training and support facility in a modern organization. Given advances in technology and the prevalence of self-training and consulting among computing end users, how can such a centralized facility continue to justify its existence?
How much documentation is enough?
Why is it important to keep a history of test cases and the results of those test cases even after a system has been revised several times?
You have been a user of many information systems including, possibly, a class registration system at your school, a bank account system, a word-processing system, and an airline reservation system. Pick a system you have used and assume you were involved in the beta testing of that system. What
One of the most difficult aspects of using the single location approach to installation is choosing an appropriate location. What factors should be considered in picking a pilot site?
Develop a table that compares the four installation strategies, showing the pros and cons of each. Try to make a direct comparison when a pro of one is a con of another.
Which installation strategy would you recommend for PVF’s Purchasing Fulfillment System? Which would you recommend for Hoosier Burger’s inventory control system? If you recommended different approaches, please explain why. How is PVF’s case different from Hoosier Burger’s?
Prepare a testing strategy or plan for PVF’s Purchasing Fulfillment System.
What are the common security threats to systems? How can they be addressed?
Describe the various roles typically found in a help desk function.
Describe the delivery methods many vendors employ for providing support.
Why do corporations rely so heavily on vendor support?
What proof do you have that individual differences matter in computer training?
What is e-learning?
What is self-training?
What are the common methods of computer training?
What is the difference between system documentation and user documentation?
Explain Lucas’s model of implementation success.
List and define the factors that are important to successful implementation efforts.
What is the conventional wisdom about implementation success?
What are the four approaches to installation? Which is the most expensive? Which is the most risky? How does an organization decide which approach to use?
Explain the code-testing process.
Jim Watanabe was in his new car, driving down I-5, on his way to work. He dreaded the phone call he knew he was going to have to make.The original go-live date for a pilot implementation of Petrie Electronics’ new customer relationship management (CRM) system was July 31. That was only six weeks
Describe the general guidelines for structuring data entry fields. Can you think of any instances when it would be appropriate to violate these guidelines?
List and describe the functional capabilities needed in an interface for effective entry and navigation. Which capabilities are most important? Why? Will this be the same for all systems? Why or why not?
What are the deliverables from coding, testing, and installation?
The references in this chapter point to a number of sources that provide website design guidelines (see additional references in the References list). Visit these sites and summarize, in a report, guidelines not addressed in this chapter. Did you find inconsistencies or contradictions across the
Search the web for information related to web services and the associated technology standards being utilized. Specifically, compare and contrast SOAP and REST using the various characteristics you identify. Also, compare and contrast XML and JSON using a similar approach. Your analysis should
In this chapter, file servers were described as one way of providing information to users of a distributed information system. What file servers are available, and what are their relative strengths, weaknesses, and costs? What other types of servers are available and/or for what other uses are file
Visit an organization that has installed a LAN. Explore the following questions.a. Inventory all application programs that are delivered to client PCs using a file server architecture. How many users use each application? What are their professional and technical skills? What business processes are
Go to the Web and find a site that provides personalized content and a site that allows you to customize the site’s content to your preferences. Prepare a report that compares and contrasts personalization and customization. Is one method better than the other? Why or why not?
Design consistency within an Internet site is an important way to build customer loyalty and trustworthiness. Visit one of your favorite websites and analyze this site for design consistency. Your analysis should consider general layout, colors and fonts, labeling, links, and other such items.
Are you using any services offered in the cloud? If so, what service model is offered by your provider? If not, what are your primary reasons for not using services offered in the cloud?
Building on the research conducted in Problem and Exercise 12-53, what challenges does each device present for designers when delivering an electronic commerce application? Are some devices more suitable for supporting some applications than others?Problem and Exercise 12-53There is a strong
There is a strong movement toward wireless mobile computing using thin-client technology. Go to the Web and visit some of the major computer vendors that are producing thin-client products such as smartphones and tablets. Investigate the features of each category of device and prepare a report that
You read in this chapter about the advantages of client/server architectures. What operational and management problems can be created by client/server architectures? Considering both the advantages and disadvantages of the client/server model, suggest the characteristics of an application that
An extension of the three-tiered client/server architecture is the n-tiered architecture, in which there are many specialized application servers and other functions (e.g., load balancers). Extend the reasons for utilizing the three tiered architecture outlined in the chapter to an n-tiered
Suppose you were designing applications for a standard file server environment. One issue discussed in this chapter for this distributed processing environment is that the application software on each client PC must share in the responsibilities for data management. One data management problem that
The Internet is a network of networks. Using the terminology in this chapter, what type of distributed network architecture is used on the Internet?
Under what circumstances would you recommend that a file server approach, as opposed to a client/server approach, be used for a distributed information system application? What warnings would you give the prospective user of this file server approach? What factors would have to change for you to
Briefly describe the role of a content management system and its benefits.
Why is it important that “Links live forever” when designing an Internet-based electronic commerce system?
Discuss how you can instill customer loyalty and trust-worthiness when designing an Internet-based electronic commerce system.
How can CSSs and XSL help to ensure design consistency when designing an Internet-based electronic commerce system?
Why is it important to separate content from display when designing an Internet-based electronic commerce system?
In what ways do Internet standards such as BIND, HTTP, and HTML assist designers in building Internet-based systems?
Describe how JSON and XML relate to SOAP and REST when implementing web services.
Describe various managerial issues related to deploying a cloud computing model including availability, reliability, scalability, viability, security, privacy, compliance, diversity of offerings, openness, and cost.
Describe and contrast the various cloud computing service models.
Explain the role of middleware in client/server computing.
Stephanie Welsh worked for Petrie’s database administrator. She had been overseeing two interns who were helping her translate conceptual database designs into physical designs. As they were finishing up the task she had assigned to them, she realized that they would soon need something else to
Go to the Internet and find commercial websites that demonstrate each of the common errors listed in Table 11-15.Table 11-15. Error Description Avoid opening a new browser window when a user clicks on a link unless it is clearly marked that a new window will be opened; users may not see that a new
Summarize the reasons for using a three-tiered client/ server architecture.
List the physical input devices described in this chapter that you have seen or used. For each device, briefly describe your experience and provide your personal evaluation. Do your personal evaluations parallel the evaluations provided in Tables 11-3 and 11-4?Tables 11-3Tables 11-4
Describe the advantages of a client/server architecture.
Design one sample data entry screen for a hotel registration system using the data entry guidelines provided in this chapter (Table 11-6). Support your design with arguments for each of the design choices you made.Table 11-6 Entry Never require data that are already online or that can be computed;
Describe the limitations of a file server architecture.
Consider software applications that you regularly use that have menu interfaces, whether they be PC- or mainframe based applications. Evaluate these applications in terms of the menu design guidelines outlined in Table 11-1.Table 11-1. Wording Each menu should have a meaningful title • Command
Contrast the following terms.a. File server, client/server architecture, local area network (LAN)b. Virtual Machine, Virtualizationc. Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS)d. Private Cloud, Public Cloude. Service-Oriented Architecture (SOA),
Examine the help systems for some software applications that you use. Evaluate each using the general guidelines provided in Table 11-11.Table 11-11. Guideline Explanation Simplicity Use short, simple wording, common spelling, and complete sentences. Give users only what they need to know, with the
Interview systems analysts and programmers in an organization where GUIs are used. Describe the ways that these interfaces are developed and used. How does the use of such interfaces enhance or complicate the design of interfaces and dialogues?
Interview a variety of people about the various ways they interact, in terms of inputs, with systems at their workplaces. What types of technologies and devices are used to deliver these inputs? Are the input methods and devices easy to use, and do they help these people complete their tasks
Examine two PC-based GUIs (e.g., Microsoft’s Windows and Apple’s OSX). If you do not own these interfaces, you are likely to find them at your university or workplace, or at a computer retail store. You may want to supplement your hands-on evaluation with recent formal evaluations published on
Imagine the design of a system used to register students at a university. Discuss the user, task, system, and environmental characteristics (Table 10-10) that should be considered when designing the interface for such a system.Table 10-10 Characteristic Consideration for Form and Report
Research the topic “natural language interface” on the web. Determine the status of applications available with natural language interaction. Forecast how long it will be before natural language capabilities are prevalent in information systems use.
Consider the design of a registration system for a hotel. Following the design specification items in Figure 11-2, briefly describe the relevant users, tasks, and displays involved in such a system.Figure 11-2 Design Specification 1. Narrative Overview a. Interface/Dialogue Name b. User
List four contributing factors that have acted to impede the design of high-quality interfaces and dialogues on Internet- based applications.
Represent the dialogues from the previous question through the use of dialogue diagrams.Previous questionDescribe some typical dialogue scenarios between users and a hotel registration system. For hints, reread the section in this chapter that provides sample dialogue between users and the Customer
Describe some typical dialogue scenarios between users and a hotel registration system. For hints, reread the section in this chapter that provides sample dialogue between users and the Customer Information System at PVF.
Propose some specific settings where natural language interaction would be particularly useful and explain why.
Briefly describe several different business tasks that are good candidates for form-based interaction within an information system.
For the three common methods of system interaction— command language, menus, and objects recall a software package that you have used recently and list what you liked and disliked about each package with regard to the interface. What were the strengths and weaknesses of each interaction method
List and describe the common interface and dialogue design errors found on websites.
Describe the properties of windows and forms in a GUI environment. Which property do you feel is most important? Why?
What steps do you need to follow when designing a dialogue? Of the guidelines for designing a dialogue, which is most important? Why?
Describe the general guidelines for designing usable help. Can you think of any instances when it would be appropriate to violate these guidelines?
Describe the types of system feedback. Is any form of feedback more important than the others? Why or why not?
Go to the Internet and find commercial websites that demonstrate each of the common errors listed in Table 10-11.Table 10-11. Error Recommendation Nonstandard Use Make sure that when using standard design items, they behave in accordance with major interface design standards. For example, the rules
Jim Watanabe, project director for the “No Customer Escapes” customer loyalty system for Petrie Electronics, walked into the conference room. Sally Fukuyama, from marketing, and Sanjay Agarwal, from IT, were already there. Also at the meeting was Sam Waterston, one of Petrie’s key
Describe the methods used to enhance the validity of data input.
Describe four types of data errors.
List and describe the general sections of a typical business form. Do computer-based and paper based forms have the same components? Why or why not?
Describe the general guidelines for the design of menus. Can you think of any instances when it would be appropriate to violate these guidelines?
Describe several input devices for interacting with a system. Is one device better than all others? Why or why not?
Use a tool for generating wireframe screen designs, such as Visio or Axure, to create a wireframe of Figure 10-5b.Figure 10-5b. Easy to read: clear, balanced layout Clear title Pine Valley Furniture Detail Customer Account Information Page: 2 of 2 Today: 11-OCT-17 Customer Number: 1273 Name:
Describe five methods of interacting with a system. Is one method better than all others? Why or why not?
Given the guidelines presented in this chapter, identify flaws in the design of the Report of Customers that follows. What assumptions about users and tasks did you make in order to assess this design? Redesign this report to correct these flaws. Report of Customers
Describe the process of designing interfaces and dialogues. What deliverables are produced from this process? Are these deliverables the same for all types of system projects? Why or why not?
Review the guidelines for attaining usability of forms and reports in Table 10-9. Consider an online form you might use to register a guest at a hotel. For each usability factor, list two examples of how this form could be designed to achieve that dimension of usability. Use examples other than
Contrast the following terms:a. Dialogue, interface.b. Command language interaction, form interaction, menu interaction, natural language interaction, object- based interaction.c. Drop-down menu, pop-up menu.
Choose a PC-based software package you like to use and choose one that you don’t like to use. Interview other users to determine their evaluations of these two packages. Ask each individual to evaluate each package in terms of speed, accuracy, and satisfaction as described in this chapter. Is
Scan the annual reports of a dozen or so companies for the past year. These reports can usually be obtained from a university library. Describe the types of information and the ways that information has been presented in these reports. How have color and graphics been used to improve the usability
Interview a variety of people you know about the different types of forms and reports they use in their jobs. Ask to examine a few of these documents and answer the following questions for each one:a. What types of tasks does each support and how is it used?b. What types of technologies and devices
Investigate the displays used in another field (e.g., aviation). What types of forms and reports are used in this field? What standards, if any, are used to govern the use of these outputs?
As stated in this chapter, most forms and reports are designed for contemporary information systems by using software to prototype output. Packages such as Microsoft Visual Studio.NET have very sophisticated output design modules. Gain access to such a tool at your university or where you work and
Find your last grade report. Given the guidelines presented in this chapter, identify flaws in the design of this grade report. Redesign this report to correct these flaws.
Use a tool for generating wireframe screen designs, such as Visio or Axure, to create a wireframe of some popular homepage.
Imagine that you are to design a budget report for a colleague at work using a spreadsheet package. Following the prototyping discussed in the chapter (see also Figure 6-7), describe the steps you would take to design a prototype of this report.Figure 6-7
How can differences in user, task, system, or the environment influence the design of a form or report? Provide an example that contrasts characteristics for each difference.

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Modern Systems Analysis And Design 8th Edition Joseph Valacich, Joey George - Solutions

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