Information Technology Reference
In-Depth Information
Figure 7.9
Developing a Web Page Using
Microsoft Visual Studio
The window on the left shows the
Web page being developed using
Microsoft Visual Studio, part of
the .NET Web development
platform. The window on the right
shows the Web page in a browser.
transfer data between Web service applications. XML is easy to read and has wide industry
support. In addition to XML, three other components are used in Web service applications:
1.
SOAP (Simple Object Access Protocol) is a specification that defines the XML format
for messages. SOAP allows businesses, their suppliers, and their customers to commu-
nicate with each other. It provides a set of rules that makes it easier to move information
and data over the Internet.
2.
WSDL (Web Services Description Language) provides a way for a Web service applica-
tion to describe its interfaces in enough detail to allow a user to build a client application
to talk to it. In other words, it allows one software component to connect to and work
with another software component on the Internet.
3.
UDDI (Universal Discovery Description and Integration) is used to register Web service
applications with an Internet directory so that potential users can easily find them and
carry out transactions over the Web.
The types of Internet and Web applications available are vast and ever expanding. Here are
some examples.
Search Engines and Web Research
A search engine is a valuable tool that enables you to find information on the Web by spec-
ifying words that are key to a topic of interest—known as keywords. You can also use
of the use of operators in Google searches as listed on Google's help page (
www.google.com/
Search engines provide their services for free, which leaves many wondering how they
make money. Search engines make money from companies that place advertisements with
the search results. Search companies learn about visitors' interests by the topics for which
they search, and can target ads to each user based on those interests. Google, Microsoft, and
Yahoo! are leaders in the search engine business.
search engine
A valuable tool that enables you to
find information on the Web by spec-
ifying words that are key to a topic of
interest, known as keywords.
