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Solution Manual for Systems Analysis and Design, 8th Edition by Alan Dennis, Barbara Wixom, Roberta M. Roth

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Solution Manual for Systems Analysis and Design, 8th Edition by Alan Dennis, Barbara Wixom, Roberta M. Roth Solution Manual for Systems Analysis and Design, 8th Edition by Alan Dennis, Barbara Wixom, Roberta M. Roth Solution Manual for Systems Analysis and Design, 8th Edition by Alan Dennis, Barbara Wixom, Roberta M. Roth

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SolutionManualfor

Dennis,Wixom,RothSystemsAnalysisandDesign,8thEdition

Chapter1-13 8i




Chapter1:TheSystemsAnalystandInformation 8i 8i 8i 8i 8i




SystemsDevelopment
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AnswertoYourTurn1-1:BeinganAnalyst 8i 8i 8i 8i 8i 8i 8i




Student answers will vary, dependingon their preferences regardingbeing a: 1) systems
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analyst, 2) business analyst, 3) requirements analyst, 4) infrastructure analyst, or 5) change
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management analyst. Verify that the student has correctly associated the skills needed with
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the type of analyst for which they aspire and that the student has created a plan to acquire those
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skills. The roles and the names used to describe them may vary from organization to
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organization.
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AnswertoYourTurn1-2:ImplementingaSatelliteDataNetwork 8i 8i 8i 8i 8i 8i 8i 8i 8i




Whileanswers mayvary, answers might include the following:
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1. A cost-benefit analysis, along with other financial processes (ROI, etc.) would
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certainly reveal that a just-in-time (JIT) inventory can reduce inventory costs and
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increase revenue. A standard communication line, encrypted or not, would not be able
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to handle the high bandwidth needed fordata,voiceand video transmissions.
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2. A competitor would be able to narrow the gap by adopting the JIT type of inventory
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management. Voice and video arenot necessaryto keep the inventory up to date on a
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timely basis, data transmissions alone would work well.
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1-1

, Answer to Your Turn 1-3: Too Much Paper, Part 1 8i 8i 8i 8i 8i 8i 8i 8i 8i




System Request
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Element Description
Sponsor Document Manager. 8i




Business Need 8i Increaseefficiencyin storing, updating, and retrieving 8i 8i 8i 8i 8i 8i




information on employee injuryclaims. 8i 8i 8i 8i




Business Requirements 8i Automated system which allows for electronic 8i 8i 8i 8i 8i




submission of reports via asecure web site. 8i 8i 8i 8i 8i 8i 8i




Business Value 8i Reduceresponsetimeforemployeeinquiries,increase 8i 8i 8i 8i 8i 8i




effectiveness of storing, updating, and retrieving
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employeeinjuryclaims.Reducestoragecostsofpaper files. 8i 8i 8i 8i 8i 8i 8i 8i




Special Issues 8i Must havesomeonewho understands howto createand 8i 8i 8i 8i 8i 8i 8i 8i




maintain a secure web site. Must have resources to migrate
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paper files to data storage. Must work within HIPAA
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guidelines to ensure that medical documents
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are treated accordingto regulations.
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AnswertoYourTurn1-4:TooMuchPaper,Part2 8i 8i 8i 8i 8i 8i 8i 8i 8i




1. Issuesarisingfrom digitalsignatures and electronic documentstypicallyfocuson
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establishing validity for signatures and originators. As these issues can be overcome
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using certificates and encryption, they don‘t necessarily affect the project feasibility.
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However, they do need to be addressed.
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2. Answers will vary. The project champion, organizational management, and perhaps 8i 8i 8i 8i 8i 8i 8i 8i 8i




most importantlya subset of the stakeholders must believe in and show support for
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the project. One solution would beto plan and provide for sufficient trainingthat
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demonstrateshow their jobs might be easier to accomplish with the automated
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system.8i




AnswertoConceptsinAction1-A:AnArrayofITFailures 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




Qantas provides for an ―ice-breaker‖ discussion topic for the first class. Perhaps group the
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students and have them discuss this company and then provide for class discussion about the
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importance of IT project success.
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AnswertoConceptsinAction1-B:BPIontheFarm 8i 8i 8i 8i 8i 8i 8i 8i 8i




Efficiency gains are mentioned in this Concept in Action. What are the drawbacks to this
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scenario? Isit aseasyas it seems? Issuessuch asWi-Fi coverageon a farm, perhapseven cellular
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coverage can come into play as can weather, dust, and other issues inherent with a farming
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enterprise.
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1-2

, AnswertoConceptsinAction1-C:InterviewwithDonHallacy,President, 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




TechnologyServices,SprintCorporation 8i 8i 8i 8i




This isan opportune time to identifythe responsibilities of the differingrolesthat an analyst
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serves.
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8 i 8 i AnswertoConceptsinAction1-D:IntangibleValueatCarlsonHospitality 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




Carlson Hospitality can use the information from the survey to determine whether the one-
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point increase in market share revenue ($20 million per point) will offset costs associated
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with increasingthelevel of services to high-qualitycustomers which would result in a 10%
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increase in customer satisfaction.
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AnswertoConceptsinAction1-E:ReturnonInvestment 8i 8i 8i 8i 8i 8i 8i 8i




1. One method for determining a return on investment is to complete a Cost-Benefit
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Analysis using the Present Value Method. Many of the costs for server virtualization
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areassociatedwiththeinitialconstruction:physicalmanipulationof the servers and
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software licensing. The ongoing costs of labor in updating and accessing tables would
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be relatively small. Using this type of analysis would allow theproject sponsors to
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show how the benefits of the virtualization would be realized on a long term basis.
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2. Implementing a major change to a system should certainly include a systems analyst. 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




Systems analysts typicallyhave abroad view ofthe system, and would be able to
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ascertain how virtualizing the servers will affect the whole system.
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AnswerstoEndofChapterQuestions 8i 8i 8i 8i 8i




1. List and describe the six general skills all project team members should have.
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[1] Technical skills (knowledge of how to employ technology in development system
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solutions). [2] Business skills (knowledge of how to apply IT to business problems to
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achieve a valuable solution). [3] Analytical skills (abilityto solve complex problems).
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[4] Interpersonalskills (oraland writtencommunicationskills with both technicaland non-
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technical audiences). [5] Management skills (ability to manage others and cope with an
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uncertain environment). [6] Ethical skills (abilityto deal with others honestly and
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ethically).
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2. What are the major roles on a project team? 8i 8i 8i 8i 8i 8i 8i 8i




1-3

, Business analyst – emphasis on the business issues addressed bythe system: value of new
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system; identification of problems and opportunities; revision of business processes and
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policies.
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Systems analyst – emphasis on IS issues of the system: how IT can be used to support
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business processes; design of newbusiness process and IS; and enforcement of IS
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standards.
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Infrastructure analyst – technicalissues associatedwithintegratingnew system 8i 8i 8i 8i 8i 8i 8i 8i 8i




components to existing technical infrastructure.
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Requirements analyst – eliciting the requirements of the new system from all 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




stakeholders. Theyunderstand thebusiness well,areexcellent communicators,and are
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highly skilled in obtaining system requirements.
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Change management analyst – emphasis on facilitatingorganizationaladaptationto new
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system. Helping to identify and overcome resistance to change and assuring adequate
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training and documentation of new system.
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Projectmanager – ensuringthat progress is madeon the project; timeschedules and
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budgets are met; supervision of project team; and manage relations with project sponsor
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and users.
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3. Compare and contrast theroleof a systems analyst,business analyst, and
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infrastructure analyst.
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These three roles emphasize different perspectives on the system. The business analyst
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represents thesponsor/users interests, whilethesystems analystknowshowto apply IS to
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support business needs. Together, the systems analyst and the business analyst can design
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a system that conforms to the IS standards while adding value to the business. The
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infrastructure analyst has more technical knowledge and provides the team with technical
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constraints, or identifies infrastructure changes that the new system will require.
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4. Compareand contrast the role of requirements analyst, changemanagement analyst, and
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project manager.
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These three roles also emphasize different perspectives on the system. The requirements
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analyst focuses on eliciting the requirements from the system stakeholders. The change
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management analyst focuses on people and managing issues surroundingthe installation
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ofthe system. Theproject manager ensures thatthe project is completed on time and within
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budget and that the system delivers the expected value to the organization.
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5. Describe the major phases in the systems development life cycle (SDLC). 8i 8i 8i 8i 8i 8i 8i 8i 8i 8i




The planning phase focuses on determining if there is justification to build an information
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system and developing a plan to accomplish the development project. Theanalysis phase is
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focused on understandingtheexistingsituation and determining the needs and
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requirements expected from the new system. The design phase refines the system
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requirements (from analysis) and develops specifications for how the new
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1-4

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Alan Dennis, Barbara Haley Wixom, Roberta Marie Roth Systems Analysis and Design
Publisher: 2021 ISBN: 9781119803782 Edition: Unknown

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