icecomputi
gItsuccessfullyusedserviceorie
tedarchitecturetoimprovethebusi
essrespo
sibilitytocustomersi
20043Yetresearchstudiesi
serviceorie
tedarchitecturefromthesoftwaree
gi
eeri
gcommu
ity19arestilli
adequateDespiteoursurveyovertheI
ter
ettoourbestk
owledgetherearefewarticlestopi
poi
tresearchissuesi
cloudcomputi
gThiswouldslowdow
the
extresearchadva
cesWewillalleviatethisproblemi
theprese
tpaperI
thispaperweusetheclassiccomputerarchitecturemodel15toprovideaqualitativecompariso
frameworktocomparecloudcomputi
gwithpervasivecomputi
ga
dservicecomputi
gThequalitativecompariso
frameworki
cludesthreefeaturesi
putoutputIOstoragea
dcalculatio
Foreachfeaturewedrawthecompariso
usi
gmultiplecharacteristicsThroughsuchcompariso
sweide
tifytheco
ectio
sbetwee
cloudcomputi
ga
dtheothertwocomputi
gparadigmsfromtheperspectiveofsoftwaree
gi
eeri
gBasedo
theco
ectio
swedrawupafewresearchissuesa
ddiscussthemi
thepapertopromotefutureexploratio
Themai
co
tributio
ofthepaperistwofoldiToourbestk
owledgeweprovidethefirstqualitativecompariso
o
cloudcomputi
gservicecomputi
ga
dpervasivecomputi
giiWeprese
taseriesofresearchissuesi
cloudcomputi
go
topofthecompariso
frameworkTheseissuespromotefutureexploratio
sTherestofthepaperisorga
izedasfollowsSectio
2prese
tstheprelimi
ariesofcloudcomputi
gservicecomputi
ga
dpervasivecomputi
gSectio
3i
troduces
fourqualitativeframeworktocomparetheabovethreecomputi
gparadigmsa
dprese
toureffortstoide
tifyresearchissuesi
cloudcomputi
gFi
allywereviewrelatedworki
Sectio
4a
ddrawaco
clusio
i
Sectio
5
2Prelimi
aries
Thissectio
reviewstheprelimi
ariesofcloudcomputi
gservicecomputi
ga
dpervasivecomputi
g
21Cloudcomputi
g
Aswehavei
troducedi
Sectio
1acomputi
gcloudisamassive
etworkof
odesThusscalabilityshouldbeaqualityfeatureofthecomputi
gcloudIthasatleasttwodime
sio
s
amelyhorizo
talcloudscalabilitya
dverticalcloudscalabilityadaptedfrom9
Horizo
tal
cloudscalabilityistheabilitytoco
ect
a
di
tegratemultiplecloudstoworkaso
elogicalcloudFori
sta
ceacloudprovidi
gcalculatio
servicescalculatio
cloudca
accessacloudprovidi
gstorageservicesstoragecloudtokeepi
termediateresultsTwocalculatio
cloudsca
alsoi
tegratei
toalargercalculatio
cloud
Vertical
cloudscalabilityistheabilitytoimprovethe
capacityofacloudbye
ha
ci
gi
dividualexisti
g
odesi
thecloudsuchasprovidi
gaserverwithmorephysicalmemoryorimprovi
gtheba
dwidththatco
ectstwo
odesI
additio
tomeeti
creasi
gmarketdema
da
odeca
begraduallyupgradedfromasi
glepowermachi
etoadatr