Page 13 - DCAP309_INFORMATION_SECURITY_AND_PRIVACY

Unit 1: Information Systems

world. All these probable problems make all establishments have their own support services, Notes
programmers, web designers, etc. If they have some difficulty, this difficulty must be right away
solved, or else, it can have random consequences and cause extraordinary money losses.
So, Internet and computers are very significant for both vast corporations and the regular
people. We all depend on the Internet uniformly and cannot deny it. But do we think of the
manner in which Internet works and offers us with all his functional information? Most people
never have a consideration of it and take Internet for granted.
The function of the World Wide Web is offered and assured by the web-hosting organizations.
These organizations are the groups of people, who have rooms, full of prevailing computers,
named host servers. The function of each host server offers the work of one, tens, hundreds or
even thousands of websites.

Free and sovereign nature of Internet provides security for information system. Internet has
developed communication and hence its contribution to information sharing. With use to a
computer and an association to Internet, anyone can communicate with others worldwide. Web
is intended to exchange unstructured information. Humans are included when conducting
business over web. Web services plays a significant and dominant role in constructing global IS.
“Web services are self-incorporated, modular applications that can be described, published,
situated and invoked over a network, usually WWW”. Web services execute functions varying
from simple requests and complex business procedures. A deployed web service can be located
and invoked by other applications and other web services via Universal Description, Discovery
and Integration (UDDI). ‘Services’ points to components and the services provided that can be
used to construct larger application services.
Web services make information obtainable from computer systems to other applications means
of well-defined standards. A series of standards have included web services discovery, security,
transactions and coordination. Web Services Interoperability Organization (WS-I) overlooks
the establishment and promulgation of standards such as:

1. Simple Object Access Protocol (SOAP): formats messages between web services
2. Web Services Definition Language (WSDL): defines use of web services
3. UDDI and WSIL (web services inspection language): locates web services
4. WS-security: handles security across web services

5. WS-coordination: coordinates numerous web services into composite systems.
W3C (World Wide Web Consortium) & OASIS (Organization for the Advancement of Structured
Information Standards) issue these standards.

Did u know? Someway or other, web hosting is a service, which makes Internet function
and it will always be significant for the World Wide Web.

Notes The types of web-hosting plans, offered by the web-hosting companies, depend on
the space client requirements for his or her website and the services, incorporated into a
package. If you want to select the most luxurious plan, you will be offered with your own
host server.

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