SolutionManualfor Dennis,Wixom,RothSystemsAnalysisandDesign,8th
b b b b b b b b b b
Edition b
Chapter1:TheSystemsAnalystand b b b
InformationSystemsDevelopment
b b b
Answer to YourTurn 1-1: Being anAnalyst
b b b b b b b
Student banswers bwill bvary, bdepending bon btheir bpreferences bregarding bbeing ba: b1) bsystems
banalyst, b2) bbusiness banalyst, b3) brequirements banalyst, b4) binfrastructure banalyst, bor b5)
bchange bmanagement banalyst. bVerify bthat bthe bstudent bhas bcorrectly bassociated bthe bskills
bneeded bwith bthe btype bof banalyst bfor bwhich bthey baspire band bthat bthe bstudent bhas bcreated
ba bplan bto bacquire bthose bskills. bThe broles band bthe bnames bused bto bdescribe bthem bmay
bvary bfrom borganization bto borganization.
Answer to YourTurn 1-2: Implementing a Satellite Data Network
b b b b b b b b b
While banswers bmay bvary, banswers bmight binclude bthe bfollowing:
1. A bcost-benefit banalysis, balong bwith bother bfinancial bprocesses b(ROI, betc.) bwould
bcertainly breveal bthat ba bjust-in-time b(JIT) binventory bcan breduce binventory bcosts
band bincrease brevenue. bA bstandard bcommunication bline, bencrypted bor bnot, bwould
bnot bbe bable bto bhandle bthe bhigh bbandwidth bneeded bfor bdata, bvoice band bvideo
btransmissions.
2. A bcompetitor bwould bbe bable bto bnarrow bthe bgap bby badopting bthe bJIT btype bof
binventory bmanagement. bVoice band bvideo bare bnot bnecessary bto bkeep bthe
binventory bup bto bdate bon ba btimely bbasis, bdata btransmissions balone bwould bwork
bwell.
1-1
, Answer to Your Turn 1-3: Too Much Paper, Part 1
b b b b b b b b b
System Request
b b
Element Description
Sponsor Document bManager.
Business bNeed Increase befficiencybin bstoring, bupdating, band bretrieving
binformation bon bemployee binjury bclaims.
Business bRequirements Automated bsystem bwhich ballows bfor belectronic
bsubmission bof breports bvia ba bsecure bweb bsite.
Business bValue Reduce bresponse btime bfor bemployee binquiries, bincrease
beffectiveness bof bstoring, bupdating, band bretrieving
bemployee binjury bclaims. bReduce bstorage bcosts bof bpaper
files.
Special bIssues Must bhave bsomeone bwho bunderstands bhow bto bcreate band
bmaintain ba bsecure bweb bsite. bMust bhave bresources bto
bmigrate bpaper bfiles bto bdata bstorage. bMust bwork bwithin
HIPAA bguidelines bto bensure bthat bmedical bdocuments
bare btreated baccording bto bregulations.
AnswertoYourTurn 1-4: Too Much Paper, Part 2
b b b b b b b b b
1. Issues barising bfrom bdigital bsignatures band belectronic bdocuments btypically bfocus
bon bestablishing bvalidity bfor bsignatures band boriginators. bAs bthese bissues bcan bbe
bovercome busing bcertificates band bencryption, bthey bdon‘t bnecessarily baffect bthe
bproject bfeasibility. bHowever, bthey bdo bneed bto bbe baddressed.
2. Answers bwill bvary. bThe bproject bchampion, borganizational bmanagement, band
bperhaps bmost bimportantly ba bsubset bof bthe bstakeholders bmust bbelieve bin band
bshow bsupport bfor bthe bproject. bOne bsolution bwould bbe bto bplan band bprovide bfor
bsufficient btraining bthat bdemonstrates bhow btheir bjobs bmight bbe beasier bto
baccomplish bwith bthe bautomated bsystem.
Answer to Concepts inAction 1-A: AnArray of IT Failures
b b b b b b b b b b
Qantas bprovides bfor ban b―ice-breaker‖ bdiscussion btopic bfor bthe bfirst bclass. bPerhaps
bgroup bthe bstudents band bhave bthem bdiscuss bthis bcompany band bthen bprovide bfor bclass
bdiscussion babout bthe bimportance bof bIT bproject bsuccess.
Answer to Concepts in Action 1-B: BPI on the Farm
b b b b b b b b b
Efficiency bgains bare bmentioned bin bthis bConcept bin bAction. bWhat bare bthe bdrawbacks bto
bthis bscenario? bIs bit bas beasy bas bit bseems? bIssues bsuch bas bWi-Fi bcoverage bon ba bfarm,
bperhaps beven bcellular bcoverage bcan bcome binto bplay bas bcan bweather, bdust, band bother
bissues binherent bwith ba bfarming benterprise.
1-2
, Answer to Concepts inAction 1-C: Interview with Don Hallacy, President,
b b b b b b b b b b
Technology Services, Sprint Corporation
b b b b
This bis ban bopportune btime bto bidentifybthe bresponsibilities bof bthe bdiffering broles bthat ban
banalyst bserves.
Answer to Concepts inAction 1-D: Intangible Value at Carlson Hospitality
b b b b b b b b b b
Carlson bHospitality bcan buse bthe binformation bfrom bthe bsurvey bto bdetermine bwhether
bthe bone-point bincrease bin bmarket bshare brevenue b($20 bmillion bper bpoint) bwill boffset
bcosts bassociated bwith bincreasing bthe blevel bof bservices bto bhigh-quality bcustomers bwhich
bwould bresult bin ba b10% bincrease bin bcustomer bsatisfaction.
Answer to Concepts in Action 1-E: Return on Investment
b b b b b b b b
1. One bmethod bfor bdetermining ba breturn bon binvestment bis bto bcomplete ba bCost-
Benefit bAnalysis busing bthe bPresent bValue bMethod. bMany bof bthe bcosts bfor bserver
bvirtualization bare bassociated bwith bthe binitial bconstruction: bphysical bmanipulation
bof bthe bservers band bsoftware blicensing. bThe bongoing bcosts bof blabor bin bupdating
band baccessing btables bwould bbe brelatively bsmall. bUsing bthis btype bof banalysis
bwould ballow bthe bproject bsponsors bto bshow bhow bthe bbenefits bof bthe bvirtualization
bwould bbe brealized bon ba blong bterm bbasis.
2. Implementing ba bmajor bchange bto ba bsystem bshould bcertainly binclude ba bsystems
banalyst. bSystems banalysts btypically bhave ba bbroad bview bof bthe bsystem, band bwould
bbe bable bto bascertain bhow bvirtualizing bthe bservers bwill baffect bthe bwhole bsystem.
Answers to End of Chapter Questions
b b b b b
1. List band bdescribe bthe bsix bgeneral bskills ball bproject bteam bmembers bshould bhave.
[1] bTechnical bskills b(knowledge bof bhow bto bemploy btechnology bin bdevelopment
bsystem bsolutions). b[2] bBusiness bskills b(knowledge bof bhow bto bapply bIT bto bbusiness
bproblems bto bachieve ba bvaluable bsolution). b[3] bAnalytical bskills b(ability bto bsolve
bcomplex bproblems).
[4] bInterpersonal bskills b(oral band bwritten bcommunication bskills bwith bboth btechnical
band bnon-technical baudiences). b[5] bManagement bskills b(ability bto bmanage bothers band
bcope bwith ban buncertain benvironment). b[6] bEthical bskills b(ability bto bdeal bwith bothers
bhonestly band bethically).
2. What bare bthe bmajor broles bon ba bproject bteam?
1-3
, Business banalyst b– bemphasis bon bthe bbusiness bissues baddressed bby bthe bsystem: bvalue
bof bnew bsystem; bidentification bof bproblems band bopportunities; brevision bof bbusiness
bprocesses band bpolicies.
Systems banalyst b– bemphasis bon bIS bissues bof bthe bsystem: bhow bIT bcan bbe bused bto
bsupport bbusiness bprocesses; bdesign bof bnew bbusiness bprocess band bIS; band
benforcement bof bIS bstandards.
Infrastructure banalyst b– btechnical bissues bassociated bwith bintegrating bnew bsystem
bcomponents bto bexisting btechnical binfrastructure.
Requirements banalyst b– beliciting bthe brequirements bof bthe bnew bsystem bfrom ball
bstakeholders. bThey bunderstand bthe bbusiness bwell, bare bexcellent bcommunicators, band
bare bhighly bskilled bin bobtaining bsystem brequirements.
Change bmanagement banalyst b– bemphasis bon bfacilitating borganizational badaptation
bto bnew bsystem. bHelping bto bidentify band bovercome bresistance bto bchange band bassuring
badequate btraining band bdocumentation bof bnew bsystem.
Project bmanager b– bensuring bthat bprogress bis bmade bon bthe bproject; btime bschedules
band bbudgets bare bmet; bsupervision bof bproject bteam; band bmanage brelations bwith
bproject bsponsor band busers.
3. Compare band bcontrast bthe brole bof ba bsystems banalyst, bbusiness banalyst,
band binfrastructure banalyst.
These bthree broles bemphasize bdifferent bperspectives bon bthe bsystem. bThe bbusiness
banalyst brepresents bthe bsponsor/users binterests, bwhile bthe bsystems banalyst bknows bhow
bto bapply bIS bto bsupport bbusiness bneeds. bTogether, bthe bsystems banalyst band bthe
bbusiness banalyst bcan bdesign ba bsystem bthat bconforms bto bthe bIS bstandards bwhile
badding bvalue bto bthe bbusiness. bThe binfrastructure banalyst bhas bmore btechnical
bknowledge band bprovides bthe bteam bwith btechnical bconstraints, bor bidentifies
binfrastructure bchanges bthat bthe bnew bsystem bwill brequire.
4. Compare band bcontrast bthe brole bof brequirements banalyst, bchange bmanagement
banalyst, band bproject bmanager.
These bthree broles balso bemphasize bdifferent bperspectives bon bthe bsystem. bThe
brequirements banalyst bfocuses bon beliciting bthe brequirements bfrom bthe bsystem
bstakeholders. bThe bchange bmanagement banalyst bfocuses bon bpeople band bmanaging
bissues bsurrounding bthe binstallation bof bthe bsystem. bThe bproject bmanager bensures bthat
bthe bproject bis bcompleted bon btime band bwithin bbudget band bthat bthe bsystem bdelivers bthe
bexpected bvalue bto bthe borganization.
5. Describe bthe bmajor bphases bin bthe bsystems bdevelopment blife bcycle b(SDLC).
The bplanning bphase bfocuses bon bdetermining bif bthere bis bjustification bto bbuild ban
binformation bsystem band bdeveloping ba bplan bto baccomplish bthe bdevelopment bproject.
bThe banalysis bphase bis bfocused bon bunderstanding bthe bexisting bsituation band
bdetermining bthe bneeds band brequirements bexpected bfrom bthe bnew bsystem. bThe bdesign
bphase brefines bthe bsystem brequirements b(from banalysis) band bdevelops bspecifications
bfor bhow bthe bnew
1-4
b b b b b b b b b b
Edition b
Chapter1:TheSystemsAnalystand b b b
InformationSystemsDevelopment
b b b
Answer to YourTurn 1-1: Being anAnalyst
b b b b b b b
Student banswers bwill bvary, bdepending bon btheir bpreferences bregarding bbeing ba: b1) bsystems
banalyst, b2) bbusiness banalyst, b3) brequirements banalyst, b4) binfrastructure banalyst, bor b5)
bchange bmanagement banalyst. bVerify bthat bthe bstudent bhas bcorrectly bassociated bthe bskills
bneeded bwith bthe btype bof banalyst bfor bwhich bthey baspire band bthat bthe bstudent bhas bcreated
ba bplan bto bacquire bthose bskills. bThe broles band bthe bnames bused bto bdescribe bthem bmay
bvary bfrom borganization bto borganization.
Answer to YourTurn 1-2: Implementing a Satellite Data Network
b b b b b b b b b
While banswers bmay bvary, banswers bmight binclude bthe bfollowing:
1. A bcost-benefit banalysis, balong bwith bother bfinancial bprocesses b(ROI, betc.) bwould
bcertainly breveal bthat ba bjust-in-time b(JIT) binventory bcan breduce binventory bcosts
band bincrease brevenue. bA bstandard bcommunication bline, bencrypted bor bnot, bwould
bnot bbe bable bto bhandle bthe bhigh bbandwidth bneeded bfor bdata, bvoice band bvideo
btransmissions.
2. A bcompetitor bwould bbe bable bto bnarrow bthe bgap bby badopting bthe bJIT btype bof
binventory bmanagement. bVoice band bvideo bare bnot bnecessary bto bkeep bthe
binventory bup bto bdate bon ba btimely bbasis, bdata btransmissions balone bwould bwork
bwell.
1-1
, Answer to Your Turn 1-3: Too Much Paper, Part 1
b b b b b b b b b
System Request
b b
Element Description
Sponsor Document bManager.
Business bNeed Increase befficiencybin bstoring, bupdating, band bretrieving
binformation bon bemployee binjury bclaims.
Business bRequirements Automated bsystem bwhich ballows bfor belectronic
bsubmission bof breports bvia ba bsecure bweb bsite.
Business bValue Reduce bresponse btime bfor bemployee binquiries, bincrease
beffectiveness bof bstoring, bupdating, band bretrieving
bemployee binjury bclaims. bReduce bstorage bcosts bof bpaper
files.
Special bIssues Must bhave bsomeone bwho bunderstands bhow bto bcreate band
bmaintain ba bsecure bweb bsite. bMust bhave bresources bto
bmigrate bpaper bfiles bto bdata bstorage. bMust bwork bwithin
HIPAA bguidelines bto bensure bthat bmedical bdocuments
bare btreated baccording bto bregulations.
AnswertoYourTurn 1-4: Too Much Paper, Part 2
b b b b b b b b b
1. Issues barising bfrom bdigital bsignatures band belectronic bdocuments btypically bfocus
bon bestablishing bvalidity bfor bsignatures band boriginators. bAs bthese bissues bcan bbe
bovercome busing bcertificates band bencryption, bthey bdon‘t bnecessarily baffect bthe
bproject bfeasibility. bHowever, bthey bdo bneed bto bbe baddressed.
2. Answers bwill bvary. bThe bproject bchampion, borganizational bmanagement, band
bperhaps bmost bimportantly ba bsubset bof bthe bstakeholders bmust bbelieve bin band
bshow bsupport bfor bthe bproject. bOne bsolution bwould bbe bto bplan band bprovide bfor
bsufficient btraining bthat bdemonstrates bhow btheir bjobs bmight bbe beasier bto
baccomplish bwith bthe bautomated bsystem.
Answer to Concepts inAction 1-A: AnArray of IT Failures
b b b b b b b b b b
Qantas bprovides bfor ban b―ice-breaker‖ bdiscussion btopic bfor bthe bfirst bclass. bPerhaps
bgroup bthe bstudents band bhave bthem bdiscuss bthis bcompany band bthen bprovide bfor bclass
bdiscussion babout bthe bimportance bof bIT bproject bsuccess.
Answer to Concepts in Action 1-B: BPI on the Farm
b b b b b b b b b
Efficiency bgains bare bmentioned bin bthis bConcept bin bAction. bWhat bare bthe bdrawbacks bto
bthis bscenario? bIs bit bas beasy bas bit bseems? bIssues bsuch bas bWi-Fi bcoverage bon ba bfarm,
bperhaps beven bcellular bcoverage bcan bcome binto bplay bas bcan bweather, bdust, band bother
bissues binherent bwith ba bfarming benterprise.
1-2
, Answer to Concepts inAction 1-C: Interview with Don Hallacy, President,
b b b b b b b b b b
Technology Services, Sprint Corporation
b b b b
This bis ban bopportune btime bto bidentifybthe bresponsibilities bof bthe bdiffering broles bthat ban
banalyst bserves.
Answer to Concepts inAction 1-D: Intangible Value at Carlson Hospitality
b b b b b b b b b b
Carlson bHospitality bcan buse bthe binformation bfrom bthe bsurvey bto bdetermine bwhether
bthe bone-point bincrease bin bmarket bshare brevenue b($20 bmillion bper bpoint) bwill boffset
bcosts bassociated bwith bincreasing bthe blevel bof bservices bto bhigh-quality bcustomers bwhich
bwould bresult bin ba b10% bincrease bin bcustomer bsatisfaction.
Answer to Concepts in Action 1-E: Return on Investment
b b b b b b b b
1. One bmethod bfor bdetermining ba breturn bon binvestment bis bto bcomplete ba bCost-
Benefit bAnalysis busing bthe bPresent bValue bMethod. bMany bof bthe bcosts bfor bserver
bvirtualization bare bassociated bwith bthe binitial bconstruction: bphysical bmanipulation
bof bthe bservers band bsoftware blicensing. bThe bongoing bcosts bof blabor bin bupdating
band baccessing btables bwould bbe brelatively bsmall. bUsing bthis btype bof banalysis
bwould ballow bthe bproject bsponsors bto bshow bhow bthe bbenefits bof bthe bvirtualization
bwould bbe brealized bon ba blong bterm bbasis.
2. Implementing ba bmajor bchange bto ba bsystem bshould bcertainly binclude ba bsystems
banalyst. bSystems banalysts btypically bhave ba bbroad bview bof bthe bsystem, band bwould
bbe bable bto bascertain bhow bvirtualizing bthe bservers bwill baffect bthe bwhole bsystem.
Answers to End of Chapter Questions
b b b b b
1. List band bdescribe bthe bsix bgeneral bskills ball bproject bteam bmembers bshould bhave.
[1] bTechnical bskills b(knowledge bof bhow bto bemploy btechnology bin bdevelopment
bsystem bsolutions). b[2] bBusiness bskills b(knowledge bof bhow bto bapply bIT bto bbusiness
bproblems bto bachieve ba bvaluable bsolution). b[3] bAnalytical bskills b(ability bto bsolve
bcomplex bproblems).
[4] bInterpersonal bskills b(oral band bwritten bcommunication bskills bwith bboth btechnical
band bnon-technical baudiences). b[5] bManagement bskills b(ability bto bmanage bothers band
bcope bwith ban buncertain benvironment). b[6] bEthical bskills b(ability bto bdeal bwith bothers
bhonestly band bethically).
2. What bare bthe bmajor broles bon ba bproject bteam?
1-3
, Business banalyst b– bemphasis bon bthe bbusiness bissues baddressed bby bthe bsystem: bvalue
bof bnew bsystem; bidentification bof bproblems band bopportunities; brevision bof bbusiness
bprocesses band bpolicies.
Systems banalyst b– bemphasis bon bIS bissues bof bthe bsystem: bhow bIT bcan bbe bused bto
bsupport bbusiness bprocesses; bdesign bof bnew bbusiness bprocess band bIS; band
benforcement bof bIS bstandards.
Infrastructure banalyst b– btechnical bissues bassociated bwith bintegrating bnew bsystem
bcomponents bto bexisting btechnical binfrastructure.
Requirements banalyst b– beliciting bthe brequirements bof bthe bnew bsystem bfrom ball
bstakeholders. bThey bunderstand bthe bbusiness bwell, bare bexcellent bcommunicators, band
bare bhighly bskilled bin bobtaining bsystem brequirements.
Change bmanagement banalyst b– bemphasis bon bfacilitating borganizational badaptation
bto bnew bsystem. bHelping bto bidentify band bovercome bresistance bto bchange band bassuring
badequate btraining band bdocumentation bof bnew bsystem.
Project bmanager b– bensuring bthat bprogress bis bmade bon bthe bproject; btime bschedules
band bbudgets bare bmet; bsupervision bof bproject bteam; band bmanage brelations bwith
bproject bsponsor band busers.
3. Compare band bcontrast bthe brole bof ba bsystems banalyst, bbusiness banalyst,
band binfrastructure banalyst.
These bthree broles bemphasize bdifferent bperspectives bon bthe bsystem. bThe bbusiness
banalyst brepresents bthe bsponsor/users binterests, bwhile bthe bsystems banalyst bknows bhow
bto bapply bIS bto bsupport bbusiness bneeds. bTogether, bthe bsystems banalyst band bthe
bbusiness banalyst bcan bdesign ba bsystem bthat bconforms bto bthe bIS bstandards bwhile
badding bvalue bto bthe bbusiness. bThe binfrastructure banalyst bhas bmore btechnical
bknowledge band bprovides bthe bteam bwith btechnical bconstraints, bor bidentifies
binfrastructure bchanges bthat bthe bnew bsystem bwill brequire.
4. Compare band bcontrast bthe brole bof brequirements banalyst, bchange bmanagement
banalyst, band bproject bmanager.
These bthree broles balso bemphasize bdifferent bperspectives bon bthe bsystem. bThe
brequirements banalyst bfocuses bon beliciting bthe brequirements bfrom bthe bsystem
bstakeholders. bThe bchange bmanagement banalyst bfocuses bon bpeople band bmanaging
bissues bsurrounding bthe binstallation bof bthe bsystem. bThe bproject bmanager bensures bthat
bthe bproject bis bcompleted bon btime band bwithin bbudget band bthat bthe bsystem bdelivers bthe
bexpected bvalue bto bthe borganization.
5. Describe bthe bmajor bphases bin bthe bsystems bdevelopment blife bcycle b(SDLC).
The bplanning bphase bfocuses bon bdetermining bif bthere bis bjustification bto bbuild ban
binformation bsystem band bdeveloping ba bplan bto baccomplish bthe bdevelopment bproject.
bThe banalysis bphase bis bfocused bon bunderstanding bthe bexisting bsituation band
bdetermining bthe bneeds band brequirements bexpected bfrom bthe bnew bsystem. bThe bdesign
bphase brefines bthe bsystem brequirements b(from banalysis) band bdevelops bspecifications
bfor bhow bthe bnew
1-4
