IaaS vs PaaS vs SaaS (Meaning, Examples, Differences) - OS ...

Examples of SaaS Providers · Dropbox · Office 365 · SAP Concur · Salesforce · Cisco WebEx · GoToMeeting · Oracle. 03.11.20 СloudСomputingCompare:IaaSvsPaaSvsSaaS(Meaning,Examples,Differences) Cloudservicesareatrendingtopicinthebusinessworld.Almosteveryorganizationneedstoutilizeacloudcomputingservice.Cloudservicesaremoreessentialtoday.Itbecomeshardtomanagethelargevolumeofsensitiveandconfidentialdata.Organizationsmaynothaveenoughresourcestobuildtheirowndatacentres.Therefore,cloudservicesareanessentialpartofanyorganization. However,themainquestionarises,whichcloudservicetouse?Theorganizationhasthreeservicemodelsofcloudcomputingtochoosefrom.Theseareasfollows: SoftwareasaService(SaaS)InfrastructureasaService(IaaS)PlatformasaService(PaaS) Alloftheservicesthatwehavementionedabovehavetheirbenefitsandlimitations.Therefore,itisnecessarytoknowaboutthemaindifferences.   On-PremisevsIaaSPaaSSaaS–KeyDifferenceintheExampleofTransport WhatisSoftwareasaService SaaSstandsforSoftwareasaService.Ituploadssoftwaretothecloudtobeutilizedbytheusers.Thecloudservicemaycostamonthlysubscriptionfeeoranannualfee.SaaSeliminatestheneedtodownloadandrunapplicationsonalocalserver.Mostoftheapplicationsrundirectlyonthebrowserwithoutaneedtodownloadandinstallthem.  SaaSDefinition SaaSDelivery ThedeliveryofSaaShappensovertheinternet,whereathird-partyvendorhandlesit.Mostoftheapplicationsrundirectlyonthewebbrowser.Therefore,yourclientsdon’tneedtodownloadorinstallthemlocally.Thethird-partyvendorhandlestheapplications.Thisprovestobeveryhelpfulforenterprises.Maintenanceandsupportbecomeeasyforenterprises.Third-partyvendorsrunapplications,OSes,virtualizations,servers,runtime,andstorage. SaaSFeatures ThefollowingaretheessentialfeaturesofSaaS: Itisaccessibleovertheinternet.SaaScanbeeasilymanagedandhandledfromacentrallocation.Youdon’tneedtobuildyourserverssincearemoteserverwillhosttheapplication.Itishighlyscalable. UtilizationofSaaS SaaScanbeusedforseveraldifferentpurposes.However,wehavementionedthemostimportantonebelow: SaaSisidealtousewhenyouwantyourapplicationtorunreliablyandsmoothlyonitsown.Also,inthecaseofSaaS,minimalinputisrequiredfromyou.Itisbestforapplicationsthatrequireaccessfrommultipledevices.SaaSisbestusedforshortprojectsthatrequireeasyandquickcollaboration. YoushouldselectSaaSasyourcloudserviceifyouneedtorefrainfromsoftwareandserverissues.AfterswitchingtoSaaS,youcanhavecompletepeaceofmind. ProsandCons Likeeverything,SaaSalsohaslimitationsandadvantages.First,let’sdiscussthemainbenefitsprovidedbySaaS: Advantages Youcanusethesoftwareeasilyonmultipledeviceswithoutinstallingthem.Itsavesbothyourtimeandmoneyfromdrearytasks.Thetasksincludeupgrading,installing,andmanaging.SaaScanbeeasilymanagedfromonecentralpoint. DisadvantagesandLimitations DatasecurityisoneofthesignificantlimitationsofusingaSaaSservice.Transferringdatatoapubliccloud-basedSaaSservicemayresultinsecurityissues.  Theintegrationofexistingappswithnewupdatescanalsobeasignificantconcern.Someofthevendorsmaynotprovideacomfortableintegrationsystem.SaaSservicerequiresyoutohandlecontrolovertoathird-partyvendor.Therefore,itmayneedcustomerstoredefinegovernancemodelsanddatasecurity.ThisredefinitionhelpstofittheSaaSvendor’sservices.Sinceathird-partyvendornowhandlesyourapplication.Theirmaintenancedown-timeandcyberattacksmayaffecttheperformanceofyoursoftware. ExamplesofSaaSProviders DropboxOffice365SAPConcurSalesforceCiscoWebExGoToMeetingOracle SaaSApplicationsandCompaniesExamples WhatisPlatformasaService PaaSstandsforPlatformasaService.PaaSprovidesaframeworkfordevelopers.Theycanbuildandcustomizetheirapplicationsthere.UsingPaaS,theservers,storage,andnetworkingismanagedbyathird-partyvendor.Atthesametime,thedevelopersthemselvesperformmaintenanceandapplicationmanagement. PaaSallowsuserstocreateapplicationsusingsoftwarecomponentsavailableinPaaS.Thesoftware,developedthroughPaaS,inheritscloudcapability.Thecapabilitymakestheapplicationhighly-scalableandavailableonmultipledevices. WhatDoesPaaSProvide PaaSDelivery ThedeliveryofPaaSisdifferentfromSaaS.ThedifferenceisinthewaythatPaaSprovidesaplatformforapplicationcreation.ThisserviceisdifferentfromSaaSsinceSaaSdeliversovertheinternet.ThemediumusedbyPaaSisdeliveredviatheweb.Thistypeofdeliverysystemgivesthedevelopermoreconcentrationinsoftwaredevelopment.Itlightenstheirburdenofworryingregardingtheoperatingsystem,updatesandstorage. PaaSFeatures ThefeaturesavailablethroughusingPaaSareasfollows: PaaSintegratesdatabasesandwebservices.Itcontainssoftwarecomponentsthathelpindevelopmentandtesting.PaaSishighly-scalableandinheritsallthecloudcharacteristics.Itiseasilyaccessibleonmultipledevicesandcanbeutilizedbyvarioususers.  UtilizationofPaaS Itisbesttouseitwhenmultipleusersareworkingonthesameproject.UsePaaSwhenthespeedandflexibilityoftheprocessisasignificantconcern. Itcansignificantlyreducethecostofdevelopment. ProsandCons TheadvantagesandlimitationsofusingPaaSasaservicearegivenbelow: Advantages Theadministratorhashighcontrolovertheapplicationsandsoftware.Itiscost-effective,scalable,andhighlyavailable. Lesstediousworkisneeded.Itcanbeeasilymigratedtoahybridmodel. Disadvantages BasiccodingknowledgeisessentialtogetthebestoutofusingthePaaSplatform.Thecontroloveryourapplicationdependsontheplatform.Incaseofapoweroutage,yoursoftwaremightbeapartofitaswell. Itgivescustomerslesscontrolandflexibility.UsingPaaS,youmightalsohaveoperationlimitations. ExamplesofPaaS GoogleSearchEngineHerokuappWindowsAzureForce.comApprenda PaaSApplicationsandProvidersExamples WhatisInfrastructureasaService IaaSstandsforInfrastructureasaService.Itworksbasicallyonthemind-setofthepay-as-you-go.Theusersneedtopayfortheservicestheyuse,suchasnetworking,storage,orvirtualization.Thevendorortheserviceprovideronlymanagestheserversandthewarehouse.Atthesametime,theusercontainseverythingelse.Theuserhastoworkwitheverythingfromtheoperatingsystemtovirtualmachines. WhatDoesIaaSProvide IaaSDelivery TheIaaSproviderprovidestheuserswithcloudserversthroughanAPIoradashboard.Inthisway,theclientshavetheentireinfrastructureundertheircontrol.Theuserscandirectlyaccesstheserversandstorage.Thetechnologyusedisthesameasatraditionaldatacenter,butyoudon’tneedtomaintainitphysically.  FeaturesofIaaS ThefeaturesofIaaSareasfollows: Youcanhighlyscaleyourapplicationsandsoftware.Youcanhavemultipleusersonasinglepieceofhardware.Itishighlyflexibleanddynamic.Itworksonpay-on-demandservice.Theprimarycontrolisinthehandsofthedeveloperortheorganization.  SchemeofWorkIaaS UtilizationofIaaS IaaSisusedinapplicationswhentheprimarydemandiscontrolovertheapplication.Moreover,itisutilizedforthefollowingapplications: Itisbestusedbyorganizationsthatdemandcompletecontrolovertheirapplications.Moreover,itisusedbyorganizationsthatonlywanttopayfortheservicesthattheyuse.ApplicationsthatdemandarapidintegrationorupgradeshouldusetheIaaSplatform. ProsandCons ThesignificantadvantagesanddisadvantagesofusingIaaSservicesareasfollows:  Advantages Itiscost-effectivesinceyouonlyneedtospendontheservicesthatyouuse.Moreover,youonlyneedtospendtimeonservers,storage,andnetworking.Ithasgoodscalability.Youcanhighscaleandupgradeyourexistingsoftwareandapplications.Itisthemostsupplecloudcomputingmodel.Theclienthascompletecontrolovertheirinfrastructure. Disadvantages ThecostofusingIaaSdependsonhowmanyservicesyouutilize.Therefore,inmostcases,thepriceisunpredictable. Sincemostofthecontrolisintheclient’shands,yourteamalsohastodothemosttedioustasks. Youmayneedtohaveextratrainingforyourteamtohelpthembettermanagetheinfrastructure. ExampleofIaaS GoogleComputeEngineRackspaceCiscoMetacloudAWSLinodeDigitalOcean IaaSProvidersandApplicationsExamples Conclusion Insummary,onetypeofcloudservicemaybeappropriateforaspecificbusiness.Therefore,youneedtobecarefulinselectingtherighttypeofserviceforyourbusiness.Someservicesmightbemorecomplicatedthanothers.Thelevelofadministrationknowledgeisasfollows:  On-Premises>IaaS>PaaS>SaaS DifferenceBetweenIaaSPaaSandSaaS Eachcloudserviceissummarizedinthefollowingtable: SaaSPaaSIaaSSaaSprovidesaccessibleandready-to-useservicesforitsclients.SaaSprovidesasolutiontoalmosteverything.PaaSisbestforbusinessesthatdon’tliketospendondifferentplatforms.Ithelpsuserstofocusonappdevelopment.Italsohelpsinworryinglessaboutinfrastructuremanagement. IaaSisthemostflexibleofthethreeservices.Itisbestusedforhostingfullybuiltapps.Italsoprovidesageneraldatastoragecenter.  Finally,ithelpswithvariousfactorsbeforechoosingaserviceforyourbusiness.Theorganizationmayneedtolookatitsgoalsandrequirementsandselectthetypeofservicetheyneed.WehopethisarticlehasgivenyouenoughinformationaboutSaaS,PaaS,andIaaS.Thearticlemakesiteasiertodecidewhichservicestouse.Youneedtolookatyourrequirementsandchoosetheservicesaccordingly. 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