Essentials Of Systems Analysis And Design 6th Edition Joseph Valacich, Joey F. George, Jeffrey A. Hoffer - Solutions

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Following your introductory comments and your attempts to explain the work that will be performed during the analysis phase of this project, you can feel a sense of uneasiness beginning to creep into the staff’s demeanor. One staff member was heard to comment to another during the break, “I
Work has proceeded well on the Williams Specialty Company engagement. The staff members were able to work effectively through the process of use case modeling, and the team has begun the development of the data flow diagrams. As often happens on consulting teams, however, one of your team members
The project team involved at the Williams Specialty Company has completed their work on the logical data flow diagrams for the as-is system. The set of data flow diagrams has been checked for basic syntax errors, and thanks to the work of the newest team member (see supplemental minicase 1), has
The project team at Williams Specialty Company reached the point of completing the process model and data model for the to-be system. The four staff members who are most familiar with the business have been heavily involved in defining needed improvements in the system and sharing their ideas for
Thomas is a systems analyst for Top Flight Systems Consulting Co., Inc. Thomas has been with Top Flight Systems for three years and has so far worked primarily as a programmer on several large implementation engagements. At long last, Thomas has been assigned to a project team as a systems analyst,
Jeff, a project manager at Top Flight Systems Consulting Co., Inc., has frequently encountered junior systems analysts on his project teams who had great difficulty developing correct data models. Frankly, Jeff was a little tired of always finding glaring errors in his team’s data models, then
Angela is a systems analyst for the Fair Grain Baking and Confectionery Company. Angela was thrilled to be assigned to a new project that will develop a new production and operations control system for the company’s four production facilities. Angela was brought on the project team just as the
Explain how an API works.
For this case, develop the following diagrams:1. A domain model class diagram2. A use case diagram3. SSDs for two use cases, such as Add a seller and Record a book order4. A first-cut sequence diagram for each of the above use cases5. An integrated design class diagram that includes classes,
What UML diagram is used to model architectural design?
Draw a UML design class that shows the following information.The class name is Boat, and it is a concrete entity class. All three attributes are private strings with initial null values. The attribute boat identifier has the property of “key.” The other attributes are the manufacturer of the
Find a company that has an enterprise system. (If you are working for a company, see what systems they use.) Analyze the system and then develop a component diagram and a deployment diagram.
What notation is used to identify the interface of a component?
What are attribute and method visibility, and what are the types of visibility shown on a design class diagram?
Visit the Web site of the World Wide Web Consortium (www.w3.org) and review recent developments related to the HTML5 standard. What are some of the basic components of the standard? What are the major additions to HTML4?
Find a company in your community that uses Scrum or XP (or variations thereof) as its development methodology. Learn how the company has applied the methodology and how it applies the principles and practices. Also, research what development tools it uses and how well the methodology is supported.
Explain the difference between device-top applications, free-standing Internet applications, and browser-based applications.
What is the “last mile” problem?
Explain what SAAS is and why it is an economically attractive alternative.
What are the six licensing criteria that are usually associated with open-source software?
List eight or 10 popular open-source applications. You may include some not mentioned in the text.
Explain the evolution of Web pages.
What is meant by Web 2.0?
What is a mashup and why is it an important contribution to Web 2.0?
What is an RIA and why is it an important contribution to Web 2.0?
What is the difference between JavaScript and JavaFX?
What is HTML 5?
1. To what events must the ticket-processing system respond? List each event, the type of event, and the resulting use case.2. Write a brief use case description for each use case.3. The portion of the database used with the ticket-processing system involves driver data, ticket data, officer
What is another way to describe an activity diagram? What does it show?
1. Modify the diagram (Figure 4-25) to incorporate the changes under consideration. You may need to use association classes and generalization/specialization (inheritance).2. Are a set of abstract and concrete classes needed to represent variations among cell phones? Why or why not?
A financial corporation has desktop applications running in several different offices that are all supported by a centralized application bank of two computers. In addition, there is a centralized database, which requires three servers. Draw a network diagram representing this requirement.
Your assignment: Recommend a communication and network solution for the county sheriff’s department. It can be any combination of Internet, VPN, Wi-Fi , telephone, and satellite communication. The applications can be custom built, with device-specific or HTML-based user interfaces. Although HTML
A sales organization has an Internet-based customer support system that needs to support every type of client device. The server configuration should be a normal layered application server and database server. Draw a network diagram representing this requirement.
1. Make a list of the equipment that Bill should purchase to support his new system. Include all equipment that will be needed for the home office, the drivers, and at Bill’s residence. Identify and describe actual equipment that can be purchased today. Estimate the cost of the equipment.2.
A small start-up company has a Web-based customer sales system that is written by using PHP and JavaScript. The company is deciding whether to host the system on its own servers, contract with a hosting company for a virtual server, or go to Amazon’s cloud. Volumes are expected to be low at the
List the major elements that must be designed for a new software application
Describe the differences between HTTPS and a VPN. What kinds of computing and networking situations are better suited to HTTPS? What kind of computing and networking situations are better suited to VPN?
What is the difference between user-interface design
Find four separate hosting providers and compare their offerings, including prices. Put your answer in a table showing the results of your research.
Compare screen size, resolution, and other important display characteristics of five popular Internet-enabled smart phones. Which would you rate as the best? Defend your answer.
Research the issues related to supporting a very large database that must be distributed across multiple servers. Write a list of the issues that need to be addressed and the alternative solutions for a distributed and partitioned database where (a) all servers are colocated in the same data center
Describe what is required for database design.
What is a LAN? When would it be used in deploying a new system?
What is three-layer design?
List the different types of client devices in a client/server architecture.
In the use of software over the Internet, what are the two main security issues that must be considered?
Describe the primary factors that affect throughput for Internet systems.
List five issues that are important when considering an external hosting company.
Why do companies use colocation facilities?
Describe the issues to be considered when designing for multiple clients.
What is a VPN? Why would a company use a VPN?
No industry group has yet defined XML tags suitable for the RTGM application. Thus, designers must develop appropriate tags for this application. If you aren’t already familiar with XML, do at least 30 minutes of background research on the Web. Refer to the class diagram in the Chapter 4 RTGM
What are the three aspects of the system that make up the user interface for a user?
What type of document allows the user to click a link and jump to another part of the document?
List and briefly describe four guidelines for interface layout and formatting that apply to all types of user display and input devices. What additional guidelines apply to Web sites/pages and user interfaces for mobile computing devices?
What UML diagram can be used to show how the interface objects are plugged in between the actor and the problem domain classes during a dialog?
What popular analogy is used for direct customer access with a Web site when customers shop online?
How do you identify the data fields of a system interface by using UML and the object-oriented approach?
There are at least two approaches to the SDLC, two approaches to software construction and modeling, and a long list of techniques and models. Discuss the following reasons for this diversity of approaches: The field is young; the technology changes quickly; different organizations have different
What is considered the first adaptive SDLC? Sketch it.
What are the three activities of the support phase?
What is a popular support technique used to answer users’ questions and help them increase productivity?
What are the basic characteristics of the object-oriented approach?
What are the three main structured techniques?
What are three diagrams created by the structured approach?
What are the main object-oriented techniques?
List six critical factors that contribute to project success.
List seven types of information that should be captured during a project.
What are seven elements common to stories told by users in the organization?
What are the four reasons users tell stories to analysts?
Applying normalization means first removing repeating groups. In this case, CLIENT-ID, CLIENT-NAME, CONTACTS, CLASS, and STAFF-SIZE would repeat for various EQUIP-TYPE. The resulting tables are: CLIENT CLIENT-ID (primary
How are gen/spec diagrams used?
The next step is to remove partial dependencies. In this case the EQUIP-TYPE depends on EQUIP-MODEL-YR whereas EQUIP-QTY depends on the entire compound key. The resulting tables are: CLIENT CLIENT-ID (primary key) CLIENT-NAME ADDRESS CLASS STAFF-SIZE TRAINING-LEVEL CONTACTS CONTACT-NAME (primary
Redesign your input form to reflect your classmates’ comments.
Read “Your Turn 2-5” in Appendix 2A of this chapter. Create a risk assessment that lists the potential risks associated with performing the project, along with ways to address the risks.Data from Your Turn 5Select a computer-aided software engineering (CASE) tool—either one that you will use
Why is security of information systems an important consideration in systems development and design.
What are the goals of the Training and Management Information Systems department?
Would you categorize MRE as a service industry, a manufacturer, or both? What kind of “products” does MRE “produce”? Suggest how the type of industry MRE is affects the information system it uses.
With your group, draw a context-level data flow diagram of your school’s or university’s registration system. Label each entity and process. Discuss why there appear to be different ways to draw the diagram. Reach consensus as a group about the best way to draw the diagram and defend your
Research Slack, the work group social media platform, with your group.a. In a paragraph, answer the questions: How does an organization subscribe to it? What are the benefits? What are the drawbacks?b. Have your group write two paragraphs: one on the benefits and one on the drawbacks of using
Add the following actors and use cases to the use case diagram:A. FACULTY actor in the lower left side of the use case diagram.B. Connect the FACULTY actor to the QUERY TRAINING CLASSES use case.C. Because the computers may have software installed for a specific computer lab, the clerical support
Carson, who is a member of the human resources department at the Elrod Manufacturing Company plant is constantly being asked by employees how much is taken out of their paychecks for insurance, taxes, medical, mandatory retirement, and voluntary retirement. “It takes up to a few hours every
Research work-sanctioned social media platforms that are available in your area. Choose one (Slack, for example) and write two paragraphs discussing (1) The benefits and (2) The drawbacks. Finally, in a paragraph, write an opinion about whether you would like to work in a company
How can systems analysis team members use Slack to build or reinforce an organizational culture or subculture.
List any changes or modifications to these criteria that you would recommend.
Which option would you recommend? Use evidence from the case to support your decision.
What organizational and political factors should Snowden consider in proposing his new system at MRE?
Study the electronic performance support system of any information system used in your university or institution. Discuss the purpose of such a system and any flaws that you found in it. What are your recommendations to improve that system?
How does the output from logical design lead to the physical design of a system?
Why do you think we require agile methodologies for systems development in present times? Do you think they would replace engineering- based methods?
As college students in the 1970s, Bob and Thelma Mellankamp often dreamed of starting their own business. While on their way to an economics class, Bob and Thelma drove by Myrtle’s Family Restaurant and noticed a “for sale” sign in the window. Bob and Thelma quickly made arrangements to
Suppose that you want to develop a software to appraise the performance of employees in your company. Which option would you choose: in-house development, outsourcing where you supply employee data to a third party or off-the-shelf software? Why?
From where will you source software in the following situations? Justify your answer: When managing a sales force, when managing financial data of a start-up firm with a limited budget, and when managing all functional areas of an IT firm.
As a student of project management, discuss which tool you would prefer, network diagrams or Gantt charts. Why?
Suppose that the librarian at your university approaches you to manage a new project to create an automated library management system. Discuss which managerial activities and skills mentioned in the chapter would be utilized and how.
Develop a project charter for the library management project. Make assumptions wherever necessary.
Besides reviewing the baseline project plan to ensure information system quality, what are some other applications of structured walkthrough meetings? What are some of the limitations? Also discuss the outcomes or deliverables from a walkthrough meeting and its purpose.
All the project identification and selection techniques can be categorized under either the topdown or the bottom-up approach. According to you, which approach should be adopted? Why? What are the outcomes of the project selection process?
Do you think a project scope statement is required when all the information is already contained in a baseline project plan?
Based on your past online experience of any Internet application, comment on its design.

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Essentials Of Systems Analysis And Design 6th Edition Joseph Valacich, Joey F. George, Jeffrey A. Hoffer - Solutions

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