This paper discusses ways for software companies to integrate cloud hosting solutions with their organizational infrastructure to derive benefits. Pointers on leveraging cloud computing to ensure robust software development are shared.

1. CloudSolutionsto
SoftwareDevelopment
Companies

2. Abstract 3
Whatis“CloudComputing”? 3
TypesofCloud 4
Cloudhostingsolutions 6Cloudhostingsolutions 6
BenefitsofCloudServicesforCompanies 7
BenefitsofCloudServices(PaaSandIaaS)forSoftwareDevelopers 8
IssuesandConcerns 9
Conclusion 10Conclusion 10
Reference 10
AuthorInfo 10
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TableofContents

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CloudSolutionstoSoftwareDevelopmentCompanies|3
“Cloudisabouthowyoudocomputing,notwhereyoudocomputing.”
PaulMaritz(CEO,VMware)
ThoughvariousdefinitionsexistforCloudcomputingbasedonthescopeofitsusage,theU.S.
NationalInstituteofStandardsandTechnology(NIST)hasconsolidatedanumberofdefinitions
from avarietyofsourcesintothefollowingsummarystatement.
“Cloudcomputingisamodelforenablingconvenient,on-demandnetworkaccesstoasharedpool
ofconfigurablecomputingresources(e.g.networks,servers,storage,applications,services)that
canberapidlyprovisionedandreleasedwithminimalmanagementeffortorserviceprovider
interaction.”
Whatis“CloudComputing”?
CloudcomputingiswidelyacceptedasthelatesttrendintheInternetage.Itprovidesatrusted
on-demandservicedeliverymechanism.Themassivepotentialofcloudcomputingisaptly
describedinGartner’srecentanalysis[1]
oncloudcomputing:
Cloudcomputingbasicallymeansexecutingsoftwareonaremoteserverratherthanusingalocal
machine.Thesetwodifferentmachinesareconnectedeitherviaaprivatenetworkorthroughthe
Internet.
Aquestiononemightaskhereis–“Whyshouldweuseanexternalmachinetostoreourmediaor
data?”TheanswerliesinthestaggeringeaseofuseandhighRoIofferedbycloudcomputing
throughitscosteffectiveness,easyscalabilityandeffectiveuseofresources.
Thoughtherearesomeconcernsaboutnetworkconnectivity,userdatasensitivityandsecurityonThoughtherearesomeconcernsaboutnetworkconnectivity,userdatasensitivityandsecurityon
cloud,cloudserviceprovidersareaddressingtheseconcernsbyadoptingavailableindustrybest
practices.
Inthiswhitepaper,wewillexamine-
“Enduserspendingonpubliccloudservicesisexpectedtogrow18.6%in2012to$110.3billionandis
expectedtorecordacompoundannualgrowthrateof17.7%from2011through2016.”
Abstract

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CloudSolutionstoSoftwareDevelopmentCompanies|4
TypesofCloud
”Thecloudisforeveryone.Thecloudisademocracy”
MarcBenioff(CEO-Salesforce.com)
1.Service-basedtypesofclouds
TheNationalInstituteofStandardsandTechnology'sdefinitionofcloudcomputingidentifies"five
keyfeaturesetsthatcharacterizescloudcomputing".Theycanbelistedasbelow
Today’scloudtechnologyecosystem hasmanycompaniesdeliveringcloud-basedservicesand
meetingsignificantsuccess.SomenotableexamplesincludeMicrosoft(Azure,MicrosoftOffice365
etc.),Google(Google-AppEngine,GoogleDriveetc.),Salesforce.com,VMwareandAmazon.These
organizationshavetakenawiderangeofdistinctlynovelapproachestoaddressvariousbusiness
challengeslikecomputing,infrastructureandsoftwaredemands,throughcloudsolutions.
Therearevarioustypesofcloudcomputingservicesandsolutions.Theycaneitherbebasedonthe
servicethatthecloudoffersoronthedeploymentmodel(orlocation)ofthecloud.
Basedontheservicethatthecloudisoffering,cloudprovidersusuallyoffertheirservicesasa
singletypeorcancombinemorethantwoservicesasabundledsuiteofsolutions.Thetypical
cloudfunctionalitiesareinfrastructure,software,applicationsorplatform.Themostcommonly
usedservicebasedcloudservicesare:

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CloudSolutionstoSoftwareDevelopmentCompanies|5
SoftwareasaService(SaaS):Inthistypeofbusinessmodel,cloudprovidersofferuserstoaccesstheir
applicationsrunningonaremotecloudinfrastructure.Suchapplicationshostedonthecloudcanbe
accessedfrom differentdevices,suchasawebbrowseroraprogram/applicationinterface.SaaSisalso
knownas“on-demand”software;heretheusersimplyaccessesthesoftwareatanypointoftimewithout
worryingabouttheelementarycloudinfrastructure(servers,network,storage,operatingsystemsor
relevantapplicationcapabilities).
Publiccloud:Thistypeofcloudinfrastructurecanbeaccessedandusedbyanyuseratanylocation.It
maybeowned,managedandrunbyaprivatebusiness,academicorgovernmentorganizationoramixof
oneormoreofthem.Thedownturnisthattheyarethemostsusceptibletovirusattacks,hacksand
unauthorizedaccessthusloweringthelevelofdataconfidentialityconsiderably.
Privatecloud:Suchcloudinfrastructureisprovisionedforexclusiveusebyasinglecompanyorentity,
comprisingofmultipleconsumers(e.g.,departmentsandSBU’s)..Sincetheyareoff-limitstogeneral
publicoutsidetheorganization,thesecloudsofferthegreatestlevelofsecurityandcontrol.Theyare
however,moreexpensivethanpublicclouds,asthecompanyisstillrequiredtopurchaseandmaintainall
thesoftwareandinfrastructureneededforaccuratefunctioningofthecloud.
Platform asaService(PaaS):Thismodelallowsconsumerstodevelopanddeployvarioussoftware
applicationsonacloudbasedplatform thatsupportsspecificprogramminglanguages,libraries,services
andtools.Sincethedemandsofmarketandbusinessarevaried,businessesmighthavetolookinto
employingdifferentplatformsasandwhenneeded.Theyneednotincurthecostandcomplexityof
buyingandmanagingthehardwareandsoftwarewheneverthedemandcomesup.Again,theactual
managementoradministrationofthebasiccloudinfrastructureisnotaccessiblebytheuser,buttheycanmanagementoradministrationofthebasiccloudinfrastructureisnotaccessiblebytheuser,buttheycan
accessandexecutedeployedapplicationsandconfigurationsettings(partialaccess)forthe
application-hostingenvironment.
Thiscapabilityprovidesdifferentresources
requiredforprocessing,networks,storageandother
fundamentalcomputingactivities.IaaSenablestheconsumer
toexecutetherequiredsoftware,applications,andalsoaccess
operatingsystems.Theuserdoesnotmanageormonitorthe
basiccloudinfrastructure.
IaaSisthemostbasicmodelandeachhighermodelabstractsfrom theIaaSisthemostbasicmodelandeachhighermodelabstractsfrom the
detailsofthelowermodel.ThecloudpyramidcanberepresentedasshowninFigure1.
IaaS-InfrastructureCloudIaaS-InfrastructureCloud
SaaS-
ApplicationCloud
SaaS-
ApplicationCloud
Machine User
Components Services
Storage Computer Network
PaaS-Platform CloudPaaS-Platform Cloud
InfrastructureasaService(IaaS):
2.Location-basedtypesofclouds
Basedonacloudlocation(deploymentmodel),wecanclassifyacloudaspublic,private,hybrid,or
communitycloud.Clouddeploymentlocationcanbeselectedbasedonthetypeofdata,application
anddifferentlevelsofcontrol,securityandextentofapplicationmanagementrequiredforyour
cloudservice.

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CloudSolutionstoSoftwareDevelopmentCompanies|6
Hybridcloud:Hybridcloudisablendoftwoormoredistinctlocationbasedclouds(private,community
orpublic).Companiescanruneachaspectoftheirbusinessmoreefficientlybyspreadingthingsovera
hybridcloud..Thekeydownsidehereistheneedtomonitormultiplesecurityplatformsandensure
relevantcollaborationbetweendifferententitieswithinthebusiness.
Communitycloud:Thistypeofcloudinvolvesclosecollaborationacrossorganizationsorasingle
communitythathaveacommoninterest(e.g.ITsecurity,knowledgemanagement,orHR/staffing).
Itmaybeowned,managedandoperatedbyoneormorecompaniesthatarepresentwithinthe
community(in-house)orcanbeoutsourcedtoathirdparty(off-premises).Thecostsarespreadover
fewerusersthanapubliccloudbutmorethanaprivatecloud.
PublicCloud PrivateCloud
Cloudhostingsolutions
Canbeusedbymultipleclients
Hostedatprovider’slocation Hostedatprovider’slocationorin-house
Sharedinfrastructure Sharedordedicatedinfrastructure
AccessoverInternetonly Accessoverintranetoraprivatenetwork
Non-guaranteedresources Guaranteedresources
Lowcost Costlierthanpubliccloud
Securebutvulnerable HighlysecureSecurebutvulnerable Highlysecure
No/Limitedoptionforcustomization Customizationpossibleasperorganizational
needs
Singleclientaccess/use
Wenowexaminehowthesoftwaredevelopmentindustrycangainbyusingcloudsolutionsfor
theirprojectdevelopment.Cloudcomputingprovidescompleteflexibilitytocompaniestomeetthe
dynamicbusinessneedsfordifferentprojects.Thisisachievedatarelativelylowcostcombined
withbettermanagement.AbusinessneednotpumpinhighcapitaltoinvestinITassetsorlicensing
foreveryproject,thussavingconsiderablyonprojectscosts.
Cloudinfrastructureservices(IaaS)deliversITinfrastructuresuchasaplatform virtualization
environment,storage,andnetworking.Insteadofpurchasingsoftware,serversornetwork
equipment,theprojectcanusevirtualmachinesonthecloudtoexecutetheirapplicationsor
programs.Also,developershavethefreedom tousetheinfrastructureavailableremotelytoinstall
thenecessaryplatformsontopofit.
Ifasoftwaredevelopmentbusinessweretodeterminethebesttypeofcloudmodel,itwillbean
IaaS(InfrastructureasaService)andPaaS(PlatformasService)onaPublicorPrivatecloud.

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CloudSolutionstoSoftwareDevelopmentCompanies|7
Anywhere,Anytimeaccess–Usingcloudsystems,organizationscanaccesstheirapplicationsordata
from anywhere,atanytime,usinganyofthemultiplechannelofaccessavailabletothem –beit
smartphones,tablets,laptopsorworkstations.
Lowhardwarecost–Oneofthekeybenefitscloudsolutionsofferisthevirtuallynegligiblehardware
coststhathelpsbusinessesimprovetheirrevenuesandbringdowncostsassociatedwithpurchasing
licensingorupgradingofdifferenthardwarecomponents.
Reducedsoftwarecost–Cloudsolutionseliminatestheneedtobuymultiplecopiesofasoftware
solution.Asinglecopyisboughtforaremoteserverwhichcanthenbeaccessedbymultiplethinclients
withintheorganization.ThisfavorsinternalITbudgetsandmakesthecompanymuchmoreprofitablein
thelongrun.
Lessmaintenance–CorporationscansavemoneyondedicatedITsupportasthehardwarewillbe
hostedonaremotelocationthattheproviderswillberesponsiblefor.Anynewupdatestothesoftware
andhardwarecanbeeasilyachievedonthecloudsystems.
BenefitsofCloudServicesforCompanies
Paas(Platform asservice)providestherequiredcomputinginfrastructure,hardwareandthe
platformsthatareinstalledontopofthehardwareonacloudinfrastructure.PaaSallowsyoutoplatformsthatareinstalledontopofthehardwareonacloudinfrastructure.PaaSallowsyouto
createsoftwareapplicationsusingsoftwarecomponentsavailableremotelyoncloud.WithPaaS,
developerscanavailofaframeworkthattheycanbuildupontodeveloporcustomizeapplications
basedonthevariousneedsofaparticularproject.PaaSmakestheapplicationbuilding,debugging,
testing,andfinaldeploymentquicker,simplerandmorecost-effective.Italsoeliminatestheneed
tobuytheunderlyinglayersofhardwareandsoftware,thusbringingdowntheoverallprojectcosts
sizablywithoutcompromisingonthequalityofthefinaldeliverables.
Manysmallandmedium sizedbusinessesarewitnessingthehugebenefitsofoptingforcloud
services.Itisprovidingthem withamorelevelplayingfieldwiththeirenterpriserivalsandthus
conductssustainablebusiness.Withoutcloudservices,itwasalmostunthinkableforsmalland
medium sizedbusinessestostaycompetitiveinthemarketwithoutinvestinghugecapitalinsetting
upinternalsystemsneededforprojectexecution.Now,eventhebigorganizationsarerealizingthe
truepotentialofcloudservicesandaregraduallymovingtowardsembracingthesame.
Additionally,withasuitablemiddleware,acloudcomputingsystem canalsobeusedasanormalAdditionally,withasuitablemiddleware,acloudcomputingsystem canalsobeusedasanormal
thin-clientworkcomputer.
Someoftheadvantagesofferedbycloudcomputinginclude-

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CloudSolutionstoSoftwareDevelopmentCompanies|8
Highprocessingpower–Usinggridcomputingsystem (cloudcomputingsystem’sbackend),theclient
cantakeadvantageoftheentirenetwork'sprocessingpowerbasedonthegivenrequirement.Onagrid
computingsystem,theclienthastheabilitytosendacomplexcalculationtothecloudforprocessingand
harnessthemultipleprocessors’powertosignificantlyspeedupthecalculation.
BenefitsofCloudServices(PaaSandIaaS)forSoftwareDevelopers
Oneofthemainconcernsforsoftwaredevelopersisimprovingthelearningcurverequiredto
adoptnewtechnologies,withoutimpactingoperationalefficiency.Themainconcernofproject
managersishowfasttheirteamscanscaleuptheirdevelopmentandtestenvironments.Arethey
goingtogettherequiredsoftwareandhardwareontimeandwithinbudgetornot?Howmuch
wouldtheyneedtodependonlocalITsupporttogettherequiredconfigurationsdonewithintheir
localcomputers?Cloudcomputingprovidesbusiness-feasibleanswerstoalltheaboveissues.
Withlimitedresourcesonlocalmachinessoftware,developersmaynotbeabletoruncomplexand
heavycomputingprogramsthatrequirelotofspaceandprocessingpower.Inthisscenario,theyheavycomputingprogramsthatrequirelotofspaceandprocessingpower.Inthisscenario,they
havetodependoninternalITsupporttoprovideextradiskspaceorotherITresourcestohelprun
suchcomplexoperations.Inbigorganizations,theapprovalprocessitselftakesfewdayswhich
leadstolossofvaluabledevelopmenttime.Withcloudcomputingsolutionsdeployedwithinthe
organization,personnelandprojectscannowutilizeon-demandcloudresourceswhichareeasily
scalableandwilllastforthedurationoftheproject,afterwhichtheyneednotworryaboutmainte-
nanceandheavylicensingfees.Largescaleprojectswhichrequiredifferentoperatingsystems,
softwareandtestenvironmentscanpotentiallysavesignificantlyonthelicensingcost.softwareandtestenvironmentscanpotentiallysavesignificantlyonthelicensingcost.
Ifemployeeswanttolearnnewtechnologies
andwanttogetsomehands-onexperience
onnewplatforms,cloudservicesisthebest
optionasemployeesneednotworryabout
settinguptheirlocalmachineswithall
hardwareandsoftwareconfigurations.Also,
theyneednotworryaboutdisturbingtheir
currentprojectworkenvironmentandcancurrentprojectworkenvironmentandcan
usethevirtualmachinestolearnandimple-
mentnewprograms.Thisenablesthe
companytosavecostsandenhancethe
learningprocess,sothattheemployeeis
readytogoliveonaproject.

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CloudSolutionstoSoftwareDevelopmentCompanies|9
IssuesandConcerns
PaaSprovidesdeveloperswitheasierwaystocreateanddeploysoftwareontocloudinfrastructure.
TheseincludeGUIs,sandboxes,programminglanguages,sharedservices,APIs,andotheronline
toolsforsoftwaredevelopers.Developernolongerneedtoworryaboutinfrastructuresetupand
caninsteadfocusmainlyonthedevelopmentprocessandtheinnovationtheycanbringaboutthis
phaseoftheprojectlifecycle.
Ascloudcomputingcontinuestotranscendmoreandmoreorganizations’ITobjectives,themain
issueoftenfacedbywould-beadoptersisregardingthesecurityandprivacyofferedbycloudbased
solutions.Largecompaniesareconcernedabouthavingtheirimportantdataonpubliccloud.
Apartfrom theseissues,theotherconcernsareregulatorycompliance,reliabilityofcontinuous
uptime,dataownershipandcredibilityofsuppliers.Inmanycases,theseissuescanbeaddresseduptime,dataownershipandcredibilityofsuppliers.Inmanycases,theseissuescanbeaddressed
bycarefulfilteringofthevendorsandfollowingstringentsecurityproceduresandtosomeextent,
buyinginsurance.Well-draftedServiceLevelAgreements(SLA)shouldaddresspotentialissues
arisingfrom reliabilityandavailablebandwidth.
Cloudusersprobablymaynotknowwheretheirdataishosted.Datathatmightbesecureinone
countrymaynotbesecureinanother.Thiscanbeanotherproblem thatneedsITmanagers’
consideration.Also,thereareotherissuesthatneedtobeaddressed,like:
a)Whoownsthedata,
b)Whethercloudcomputingcompaniescanlegallydenyaclientitsdata,and
c)Whatifthelocallawsallowit.

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CloudSolutionstoSoftwareDevelopmentCompanies|10
Conclusion
Reference
Inthefaceofadversecompetitionandgraveeconomicconcerns,companiesarefacinglotofbusiness
challengeswhichisforcingthem tothinkhowtheycanbestutilizeexistingcomputingpowerandsoftware
applicationsoptimallywithoutmajorlyaffectingbudgetsandcosts.ThesechallengesaredrivingITand
businessdecision-makerstoconsiderawideningarrayofcloudcomputingalternativesaspotential
solutions.
Somecompaniesarebuildingtheirownprivatecloudstocatertospecificneedsofthecompanyandothers
areconsideringenterprise-classcloudsolutionsofferedbyprovenserviceproviders.Oneshouldundertake
athoroughcost-benefitanalysisonfactorssuchaseaseofintegration,useracceptance,cost-effectiveness,
andbusinessneedforprivate,publicorhybridcloudsbeforedecidingtogoaheadwithanyofthem.
Manycompaniesuseamixtureofpublicandprivate(hybridcloud)clouddeploymentstobringthe
costsdown,aswellasgainadequatecontrolovercriticaldata.Attheendoftheday,thedecisionoften
comesdowntocostvs.control.
AuthorInfo