Page 263 - How Cloud Computing Is Transforming Business and Why You Cant Afford to Be Left Behind

GL OS SARY

system. It can deal with large data sets sent to be processed on
a cluster of servers.

SOA: Services-oriented architecture, or a way of organizing en-
terprise applications as a set of independent services. SOA
concepts led to the establishment of clear Web services stan-

dards that enable many exchanges in cloud computing.

SOAP: Simple Object Access Protocol, a standard way to send
eXtensible Markup Language (XML) documents and other
files over the Web, with instructions included on what is to be
done with the content once it arrives.

Software as a service (SaaS): A form of cloud computing that
makes applications available from an online data center. Many
users make use of the application at the same time, driving

economies of scale. Salesforce.com is a pioneer of SaaS.

Spike: A jump in traffic to a Web server or a demand by a run-
ning application for a sudden increase in processor cycles.

TCP/IP: Transmission Control Protocol/Internet Protocol, a
resilient networking protocol on which the Internet is based;
it automatically routes around switch or router outages.

Virtual appliance: An application along with its operating sys-
tem, usually optimized to work together, packaged as a virtual
machine and able to be moved over the network as a single
file. Virtual appliances are often built to run in a target pub-
lic cloud facility, such as an Amazon Machine Image for Elastic
Compute Cloud (EC2). Upon receipt, a public cloud can au-
tomatically load and run the virtual appliance.

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