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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Chap 3 E-Business Infrastructure

Documents

Transcript of Chap 3 E-Business Infrastructure