Information Technology Reference
In-Depth Information
WSDL
Registry
(UDDI)
Points to description
Finds
service
Describes
Web service
Service
consumer
Web
service
SOAP communication
FIGURE 8.1
Web services usage model.
easily with well-established and resourceful original equipment
manufacturers (OEMs).
• Web Services will enable only those OEMs to flourish that focus on
providing comprehensive implementations and highly productive
application development environments for Web Services.
• Web Services will enable applications to be packaged not only as
licenses but also as services; this will give a big fillip to ASP services
(as discussed in the earlier section) and will consequently expand
the overall market size tremendously.
• Web Services will enable value-added resellers (VARs) to rapidly
add new functionality to current product offerings or to customize
the existing applications of customers.
• Web Services will enable enterprises to adapt better to changing
market conditions or competitive threats
Figure 8.1 shows the Web Services usage model.
8.1 Web Service Standards
The standards are a collection of specifications, rules, and guidelines
formulated and accepted by the leading market participants and are
independent of implementation details. Standards establish a base for com-
monality and enable wide acceptance through interoperability. Examples of
standards include a common communication language (XML), a common
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