MIS.docx
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MIS.docx
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MIS
ⅠMISSolutionfortheAgencyanditsImplementationProcess
1.1MISSolution
Accordingtothedescription,OutsourcingProgrammersSystemismoreappropriateforaRealEstateAgency.
Underthesystem,theAgencywilltransfermostresponsibilitytotheoutsiderwhichismoreprofessional,suchassystemdevelopmentandcomputeroperation.Typically,itshouldnegotiateadevelopmentprice,providedetailedspecifications,andtheoutsourcerhiresworkersanddevelopssystems
TheprimaryadvantageofthissystemisthatOutsourcingProgrammersSystemcanreducetheworkloadandtheentireprocesseswillbeinaprofessionalandefficientway.
1.2ImplementationProcess
ARealEstateAgencyneedsasystemsdevelopmentlifecycle(SDLC)toexplainitsimplementationprocess,whichisaprocessofestablishingcomputersystem.SDLCcanovercometheproblemsthatarisewithlargeprojectsthatinvolvemanyusersandrequirethousandsofhoursofdevelopmentbymultipleanalystsandprogrammers.BelowisSystemsdevelopmentlifecycleoftheAgency.
Figure1SystemsdevelopmentlifecycleoftheAgency
Onthebasisofthisfigure,sixstagesoftheAgencycanbegiven:
1.FeasibilityandPlanning
Afeasibilitystudyisaquickexaminationoftheproblems,goalsandexpectedcostsofthesystems.Theobjectiveistodeterminewhethertheproblemcanreasonablybesolved.
Assessthefeasibilityoftheexistingsystemfromtheeconomicandtechnicalaspects.Ineconomicaspect,throughtheanalysisofcost/benefit,determinewhentheapplicationcanrecoverthecost.Intechnicalaspect,throughtheidentificationofeachalternativetechnology,determinewhetherbuildtheapplicationornot.
2.SystemsAnalysis
Thisstageistodeterminehowtheexistingsystemworksandwheretheproblemsarelocated,andbreakthesystemintopieces.Dataflowdiagramsareacommonmethodtodisplaythatisdeterminedduringthisstage.
3.SystemsDesign
Duringthisstage,OutsourcingProgrammersSystemistypicallydesignedonpaper.Theobjectiveofthisstageistodescribeitasacollectionofmodulesorsubsystems.
4.SystemsImplementation
ThisstageinvolvesinstallationandchangeoverfromtheexistingsystemtoOutsourcingProgrammersSystem,includingtrainingusersandmakingadjustmentstothesystem.Acrucialstageinimplementationisfinaltesting.
Inthisstage,almosteveryemployeeistrainedinaprofessionalwaytounderstandthenewsystem,inordertomakesureitisoperatedinarightway.
5.SoftwareMaintenance
Afterhardware’supgradeandusers’changes,errorsmayexistinthesystem.Thentherearemanyjobsofoverseeingandmakingthesemodifications.
EverydaythenewsystemshouldbemonitoredandmodifiedincreasinglybythespecialistsinthisAgency.
6.Evaluation
Thelaststageistoevaluatetheresultingsystem,itisimportanttoassesstheeffectivenessoftheparticulardevelopmentprocess.
EvaluatewhetherthenewsystemcanbringbenefitsfortheAgencyandisindeedeffective.
StrengthsandWeaknessesofSDLC:
Strengths
Weaknesses
Control
Monitorlargeprojects
Detailedsteps
Evaluatecostsandcompletiontargets
Documentation
Well-defineduserinput
Easeofmaintenance
Developmentanddesignstandards
TolerateschangesinMISstaffing
Increaseddevelopmenttime
Increaseddevelopmentcosts
Systemsmustbedefinedupfront
Rigidity
Hardtoestimatecosts,projectoverruns
Userinputsometimeslimited
ⅡTrainingRequirementstosupportMIS
TheAgencyshouldtrainitsemployeesfromfouraspectsbelow:
1.SoftwareSupport
Traintheabilitiesofhelpdeskoperator,makingthemunderstandhowtousesystemstoinquireabouttheconditionsofeachhouseforpeoplewhowhattobuyorknowthehouse.
AndtraintheabilitiesofPCtechnicalsupport,inordertoprovidetechnicalsupportforthedevelopmentofhouseavailabilitysoftware.
2.NetworkSupport
Trainmanagers’abilitiesofbuildingnetworksthatcancorrectforfailuresandbottlenecks,inordertolettheentireagencynetworkbeavailable24hoursaday,7daysaweek.
Andtrainnetworkanalyst’sabilitythatithasspecializedskillstoconfiguretherouter,monitortheconnectionandkeepupwithcurrentadvisories,inordertomakethenetworkinsecurity.
3.DataandDatabaseAdministration
Trainadministrator’sabilitythatitmaintainstheAgency’sdatabase,monitorperformanceofthedatabasemanagementsystem.
Andtraindatabaseanalystsolveday-to-dayproblemswhicharisewithitshouse-listingdatabase
4.ExpertSystemSupport
Byrulesandalotofproblemsprovidedbycustomersabouthousearesummarizedbyemployeesformanyyears,anexpertsystemoftheAgencyisestablished.Trainemployeesunderstandthesystemandgaintheexperience,sothattheycansolveanyquestionsandreachsconclusion,becauseithasprovisionsforexplainingcustomer’sanswers.
ⅢMISDataoftheAgencyandUseoftheseData
1.Normalization
Agent(AgentID,Name,Address,Sex,Socialsecuritynumber,Realestatelicensenumber)
House(Houselistingnumber,Owner’sname,Location,Listingdate,Price,Style)
Achievements(AgentID,Houselistingnumber,Achievement)
2.TableDesign
Figure2AgentDesign
Figure3HouseDesign
Figure4AchievementsDesign
3.Relationship
Figure5RelationshipsbetweenAgent,HouseandAchievements
4.TestData
Figure5TestDataofAgent
Figure6TestDataofHouse
Figure7TestDataofAchievements
5.Query
Question:
Whichowner’shouseissalebyanagentonhisorherowneffort?
Figure8Query
6.Report
Figure9Reportofachievementsofsomeowners’houses
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