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Lecture 12

IS 3003 Lecture 12: Notes - Building Information SystemsPremium

3 pages76 viewsFall 2015

Department
IS - Information Systems
Course Code
IS 3003
Professor
Nasim Talebi
Lecture
12

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IS3003
Building Information Systems
Chapter 12
DIFFERENT WAYS OF DEVELOPING INFORMATION SYSTEMS
1. PROBLEM SOLVING AND SYSTEMS DEVELOPMENT
a. ISasSolutionstoProblems
i. 4stepstobuildingandIS
1. Defineandunderstandproblem
2. Developalternativesolutions
3. Choosesolution
4. Implementthatsolution
ii. Thefirst3stepsaresystemanalysis
iii. Thelaststep(implementingthesolution)issystemsdesign
b. SystemDevelopment(ProblemSolvingApproach)
i. Step1:DefiningandUnderstandingtheproblem
1. Whatcausedtheproblems
2. Whydoesitpersist?
3. Whyhasn'titbeensolved?
4. Whataretheobjectivesofasolution?
5. ConductaRequirementAnalysistodeterminetheInformation
Requirementsofthenewsystem.
ThemoretimeandmoneyspentonStep1,themorelikely
youaretobesatisfiedandgettheresultsyouwant.
ii. Step2:DevelopAlternativeSolutions
1. Developalternativesolutionstoachievetheobjectivesand
InformationRequirementsthatwereidentified
2. Somesolutionsdonotrequireaninformationsystem
3. Somesolutionsrequiremodificationofexistingsystems
4. Somesolutionsrequireanewsystem.
iii. Step3:EvaluatingandChoosingSolutions
1. ConductaFeasibilityStudytodeterminewhethereachalternativeis
feasibleandachievable
Isthesolutionfeasiblefromfinancial,technical,and
organizationalstandpoint?
1
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