Maintenance is a changes made to an information system to fix or enhance its functionality

1. SYSTEM
MAINTAINANCE
Presented BY ~
SubhashKumar
Roll No- 130121089

2. Introduction
System operation is the ongoing function in which the system
operates until it’s replaced with a new system.
 System maintenance involves servicing, maintaining and improving
functional information system through its lifetime. System operation
and support occur in parallel.

3. TERMINOLOGY:
NO. WORD DEFINITION
1
ConfigurationManagement Assuringforauthorizedchangesmadetoasystem.
2
CorrectiveMaintenance Changesmadetosystemtorepairflawsinitsdesign,codingor
implementation.
3
PerfectiveMaintenance Changesmadetoasystemtoaddnewfeatures/improveperformance
4
PreventiveMaintenance Changesmadetoasystemtoavoidpossiblefutureproblems
5
SystemMaintenance Changesmadetoasystemtofixitsfunctionality.
6
SystemSupport Technicalsupportforusers,omissionofnewrequirementsneededtoasystem.

4. Systemmaintenanceconsistsoffollowing sections:
Typesofmaintenance
Conductingandmanagingmaintenance

5. TypesOfMaintenance
Thereareseveraltypesofmaintenanceavailablefortheinformationsystem.
Maintenanceisachangesmadetoaninformationsystemtofixorenhanceits
functionality(Hofferet.al.,2005).
Therearefourtypesofmaintenance:
 CorrectiveMaintenance
 AdaptiveMaintenance
 PerfectiveMaintenance
 PreventiveMaintenance

6. CorrectiveMaintenance
Correctivemaintenancereferstochangesmadetorepairsthedefectsinthedesign,
codingorimplementationofthesystem. Itdiagnosesandcorrectserrorsinan
operationalsystem.Whencorrectivemaintenanceproblemsoccurred,itneedstobe
repairedandresolveassoonaspossible.
Examplesincorrectreporttitle,incorrectreporttotalandwrongformatforreport

7. AdaptiveMaintenance
Itisbasedonbusinessneedsandprovideenhancementtoasystem.It’sdifferentwith
correctivemaintenance,becauseadaptivemaintenanceislessurgentsincebusinessand
technicalchangesmayoccuroversomeperiodoftime.Theneedsoccurswhenchangeinthe
organizationsuchasnewproductsorservices,newtechnology,orintroduceofaweb-based
system.It’sonlyasmallpartofanorganization’smaintenanceeffort,it’snoturgentbutit’s
addvaluestoorganizations.

8. PerfectiveMaintenance
Itimprovesasystemefficiency,reliabilityormaintainability.Normally,itcomesfromuserswhen
theysubmitarequestthenthesupportteamwillinitiateaperfectivemaintenance.Whenusers
concernswithperformance,weshoulddetermineeitherperfectivemaintenancecanincreasethe
systemperformanceornot.Adaptiveandcorrectivemaintenancemoreimportantthanperfective
maintenance.Sometimes,perfectivemaintenancecanbeconsideredasapartofnewproject.

9. PreventiveMaintenance
Changesaremadeinordertoavoidfutureproblemsandreducethesystemfailure.To
avoidanyproblems,itrequiresanalysisofareaswheretheproblemsmightbeoccurred.
Normally,preventivemaintenanceisinitiatedbytheteam.Itoftenresultsinincreased
usersatisfactionanddecreaseddowntime.Preventivemaintenanceisimportantin
ordertoavoidfutureproblems

10. CONDUCTINGANDMANAGINGMAINTENANCE
 Cost of Maintenance
 Configuration Management
 Maintenance Team
 Managing Maintenance Request

11. THANKS