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computer sciences
systems analysis and design

Questions and Answers of Systems Analysis And Design

Compare and contrast the Gantt chart and the PERT chart.
Of what value is the Gantt chart to the project manager? The PERT chart?
Suppose that you are a project manager using the waterfall development methodology on a large and complex project. Your manager has just read the latest article in Computerworld that advocates
Suppose that you are an analyst developing a new information system to automate the sales transactions and manage inventory for each retail store in a large chain. The system would be installed at
Suppose that you are an analyst developing a new executive information system (EIS) intended to provide key strategic information from existing corporate databases to senior executives to help in
Suppose that you are an analyst working for a small company to develop an accounting system. What methodology would you use? Why?
Pretend that the career services office at your university wants to develop a system that collects student résumés and makes them available to students and recruiters over the Web. Students should
Refer to the situation in question G. You have been told that recruiting season begins a month from today and that the new system must be used. How would you approach this situation? Describe what
Consider the system described in question G. Create a work plan listing the tasks that will need to be completed to meet the project's objectives. Create a Gantt chart and a PERT chart in a project
Suppose that you are in charge of the project described in question G, and the project will be staffed by members of your class. Do your classmates have all of the right skills to implement such a
Pretend that your instructor has asked you and two friends to create a Web page to describe the course to potential students and provide current class information (e.g., syllabus, assignments,
In 1997, Oxford Health Plans had a computer problem that caused the company to overestimate revenue and underestimate medical costs. Problems were caused by the migration of its claims processing
Emily Pemberton is an IS project manager facing a difficult situation. Emily works for the First Trust Bank, which has recently acquired the City National Bank. Prior to the acquisition, First Trust
Marcus Weber, IS project manager at ICAN Mutual Insurance Co., is reviewing the staffing arrangements for his next major project, the development of an expert system-based underwriters assistant.
Tom, Jan, and Julie are IS majors at Great State University. These students have been assigned to a class project by one of their professors, requiring them to develop a new Web-based system to
One of the most common mistakes made by new analysts is to confuse functional and nonfunctional requirements. Pretend that you received the following list of requirements for a sales
IBM Credit was a wholly owned subsidiary of IBM responsible for financing mainframe computers sold by IBM. While some customers bought mainframes outright or obtained financing from other sources,
In 1990, I led a consulting team for a major development project for the U.S. Army. The goal was to replace eight existing systems used on virtually every Army base across the United States. The
Early in my consulting career I was sent to a client organization with the goal of interviewing the only person in the organization who knew how the accounts receivable system worked, and developing
At my neighborhood Publix grocery store, the cashiers always handwrite the total amount of the charge on every credit card charge form, even though it is printed on the form. Why? Because the “back
What is the meaning of analysis? What is the purpose of the analysis phase of the SDLC?
What are the key elements of the system proposal?
A system development project may be approached in one of two ways: as a single, monolithic project in which all requirements are considered at once or as a series of smaller projects focusing on
Distinguish between business, user, and functional requirements.
Explain what is meant by a nonfunctional requirement. What are the primary types of nonfunctional requirements? Give two examples of each. What role do nonfunctional requirements play in the project
What is the value of producing a requirements definition and having the project sponsor and key users review and approve it?
What are the three basic steps of the analysis process? Is each step performed in every project? Why or why not?
Discuss the appropriate way to set up and conduct interviews to elicit requirements.
Give an example of a closed-ended question, an open-ended question, and a probing question. When would each type of question be used?
Interviews should always be conducted as structured interviews." Do you agree with this statement? Why or why not?
Discuss the considerations that should be made when determining who to include in interviews and/or JAD sessions.
Is the primary purpose of requirements determination to discover facts or to discover opinions? Explain your answer.
Describe the five major steps in conducting JAD sessions.
Describe the primary roles involved in JAD sessions. What is the major contribution made by the person(s) fulfilling each role?
Discuss the reasons that question design for questionnaires is so difficult.
Why is document analysis useful? What insights into the organization can it provide?
Outline suggestions to make observation a useful, reliable requirements elicitation technique.
Describe a strategy for using the various requirements elicitation techniques in a project.
Discuss problem analysis as an analysis strategy. What are the strengths and limitations of this technique?
Discuss root cause analysis as an analysis strategy. What are the strengths and limitations of this technique?
Compare and contrast duration analysis and activity based costing. What role do these activities play as analysis strategies?
How can informal benchmarking contribute to requirements determination?
Compare and contrast outcome analysis, technology analysis, and activity elimination. What general contribution do these strategies play in determining requirements?
Review the Amazon.com Web site. Develop the requirements definition for the site. Create a list of functional business requirements that the system meets. What different kinds of nonfunctional
Pretend that you are going to build a new system that automates or improves the interview process for the career services department of your school. Develop a requirements definition for the new
Describe in very general terms the as-is business process for registering for classes at your university. Collaborate with another student in your class and evaluate the process using problem
Describe in very general terms the as-is business process for applying for admission at your university. Collaborate with another student in your class and evaluate the process using informal
Describe in very general terms the as-is business process for registering for classes at your university. Collaborate with another student in your class and evaluate the process using activity
Suppose that your university is having a dramatic increase in enrollment and is having difficulty finding enough seats in courses for students so that they can take courses required for
Suppose that you are the analyst charged with developing a new system for the university bookstore with which students can order books online and have them delivered to their dorms and off-campus
Suppose that you are the analyst charged with developing a new system to help senior managers make better strategic decisions. What requirements gathering techniques will you use? Describe in detail
The state firefighters' association has a membership of 15,000. The purpose of the organization is to provide some financial support to the families of deceased member firefighters and to organize a
Brian Callahan, IS project manager, is just about ready to depart for an urgent meeting called by Joe Campbell, manager of manufacturing operations. A major BPI project, sponsored by Joe, recently
Barry has recently been assigned to a project team that will be developing a new retail store management system for a chain of submarine sandwich shops. Barry has several years of experience in
Anne has been given the task of conducting a survey of sales clerks who will be using a new order entry system being developed for a household products catalog company. The goal of the survey is to
Create a set of use cases for the following high-level requirements in a housing system run by the Campus Housing Service. The Campus Housing Service helps students find apartments. Owners of
Review the initial Holiday Travel Vehicle functional requirements 2-3-2-6 in Figure 3-3.Now, based on your study of UC-4 in Figure, revise the list of functional requirements to provide more clarity
Review the initial Holiday Travel Vehicle functional requirements 2-7–2-8 in Figure. Now, based on your study of UC-5 in Figure, revise the list of functional requirements to provide more clarity
Several years ago, a well-known national real estate company built a computer-based system to help its real estate agents sell houses more quickly.The system, which worked in many ways like an early
What is the purpose of developing use cases during systems analysis?
How do use cases relate to the requirements stated in the requirements definition?
Describe the elements of the use case's basic information section.
What is the purpose of stating the primary actor for the use case?
Why is it important to state the priority level for a use case?
What is the distinction between an external trigger and a temporal trigger? Give two examples of each.
Why do we outline the major steps performed in the use case?
What is the purpose of an event-response list in the process of developing use cases?
Should a use case be prepared for every item on the event-response list? Why or why not?
Describe two ways to handle a situation in which there are a large number of use cases.
What role does iteration play in developing use cases?
Describe the best way to validate the content of the use cases.
Create a set of use cases for the process of buying glasses from the viewpoint of the patient, but do not bother to identify the steps within each use case. (Just complete the information at the top
Create a set of use cases for the accompanying dentist office system, but do not bother to identify the steps within each use case. (Just complete the information at the top of the use case form.)
Complete the use cases for the dentist office system in exercise B by identifying the steps and the data flows within the use cases.
Create a set of use cases for an online university registration system. The system should enable the staff of each academic department to examine the courses offered by their department, add and
Create a set of use cases for the following system: A Real Estate, Inc. (AREI), sells houses. People who want to sell their houses sign a contract with AREI and provide information on their house.
Create a set of use cases for the following system: A Video Store (AVS) runs a series of fairly standard video stores. Before a video can be put on the shelf, it must be catalogued and entered into
Create a set of use cases for the following health club membership system: When members join the health club, they pay a fee for a certain length of time. Most memberships are for one year, but
Create a set of use cases for the following system:Picnics R Us (PRU) is a small catering firm with five employees. During a typical summer weekend, PRU caters 15 picnics with 20 to 50 people each.
Create a set of use cases for the following system:Of-the-Month Club (OTMC) is an innovative young firm that sells memberships to people who have an interest in certain products. People pay
Create a set of use cases for a university library borrowing system. (Do not worry about catalogue searching, etc.) The system will record the books owned by the library and will record who has
Williams Specialty Company is a small printing and engraving organization. When Pat Williams, the owner, brought computers into the business office eight years ago, the business was very small and
Draw a context diagram, a level 0 DFD, and a set of level 1 DFDs (where needed) for the campus housing use cases that you developed for the Your Turn 4-1 box in Chapter 4.
Shortly after the Gulf War in 1991 (Desert Storm), the U.S. Department of Defense realized that there were significant problems in its battlefield logistics systems that provided supplies to the
What is a process model? What is a data flow diagram? Are the two related? If so, how?
Distinguish between logical process models and physical process models.
Define what is meant by a process in a process model. How should a process be named? What information about a process should be stored in the CASE repository?
Define what is meant by a data flow in a process model. How should a data flow be named? What information about a data flow should be stored in the CASE repository?
Define what is meant by a data store in a process model. How should a data store be named? What information about a data store should be stored in the CASE repository?
Define what is meant by an external entity in a process model. How should an external entity be named? What information about an external entity should be stored in the CASE repository?
Why is a process model typically composed of a set of DFDs? What is meant by decomposition of a business process?
Explain the relationship between a DFD context diagram and the DFD level 0 diagram.
Explain the relationship between a DFD level 0 diagram and DFD level 1 diagram(s).
Discuss how the analyst knows how to stop decomposing the process model into more and more levels of detail.
Suppose that a process on a DFD is numbered 4.3.2. What level diagram contains this process? What is this process's parent process?
Explain the use of structured English in process descriptions.
Why would one use a decision tree and/or decision table in a process description?
Explain the process of balancing a set of DFDs.
How are mutually exclusive data flows (i.e., alternative paths through a process) depicted in DFDs?
Discuss several ways to verify the correctness of a process model.

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