chap 3 e-business infrastructure
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8/17/2019 Chap 3 E-Business Infrastructure
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E-Business Infrastruc
And Blogging
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IaaSInfrastructure as a Service
PaaSPlatform as a Service
SaaSSoftware as a Service
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Software as a Service Software as a Service (SaaS) is a software
distribution model in which applications are hostedby a vendor or service provider and made availableto customers over a networ! typically the Internet
#sually paid on a subscription basis! on demandservices!
$%& companies got on 'I in rst year
Increasingly popular with S*Es
+o hardware or software to manage
Service delivered through a browser
SaaS
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E,amples
'* (hccl.info) .inancial Planning
/uman 'esources
0ord processing (google docs)
ommercialServices1
Salesforce"com
emailcloud
SaaS
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Benets of SaaS
/istorically! companies were re2uired to buy! builmaintain their I3 infrastructures despite e,ponentSaaS gives companies an alternative" +ow! they cand subscribe to services built on shared infrastruthe Internet" 3he SaaS model has 4ourished in rec
because of the many benets it o5ers to businesssi6es and types"
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hallenges of deploying SaaS
8ess 3ailoring possibilities
9epends upon third party
9own or poor networ issues
8ocal vs global databases
'educe data security
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Platform as a Service
Provision of software services for applicationdesign! development! data storage! testing andhosting together with messaging tools forcollaboration on the development pro:ects"
Platforms are built upon Infrastructure! which is
e,pensive
Estimating demand is not a science;
Platform management is not fun;
PaaS
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Popular services
Storage
9atabase
PaaS
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Infrastructure as a
ServiceAccess to infrastructure stac1
.ull S access
.irewalls
'outers
Switches
8oad balancing
Plus Soft wares
IaaS
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E,amples
.le,iscale
A0S1 E<
IaaS
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%%
E,ample vendors
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Service-Oriented Architectu
(SOA) SOA:
Service-Oriented Architecture (SOA) is an architectural style that supports servic
Service-orientation is a way of thinking in terms of services and service-based d
outcomes of services.
A service:
Is a logical representation of a repeatable business activity that has a specified ou
customer credit, provide weather data, consolidate drilling reports) Is self-contained
May be composed of other services
Is a black bo!" to consumers of the service
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Blogs and Blogging
Blogs in an online dairy or news source prepared by an indgroup of people"
Blogs give an easy method of regularity publishing web pa
*any blogs provide commentary and news on a particular function as more personal online dairies"
A typical blog combines te,t! Images! and lins to other blo
pages and other media related to its topic"
.re2uency can be hourly! daily! weely or less fre2uently"
Better e,ample of a useful blog is smart insight blog
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Services to enable blogging
3here are many free services which anyone to blog"
.or e,ample(www"blogger "com)
3he main tools to create blogs for individuals or companiesappro,imate order of popularity! are1
www"typepad"com
www"blogger"com
www"wordpress"com
http://www.typepad.com/http://www.blogger.com/http://www.wordpress.com/http://www.wordpress.com/http://www.blogger.com/http://www.typepad.com/
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