This will cause
the ambiguous understanding of the input. To solve the integration problem, both
service requester and the service provider should have the same understanding of
these meanings. The semantic conflicts occur when these two partners use different
interpretations for the same item.
In the following section, we will introduce some basis knowledge of Web services
discovery and some works on value-added service discovery. This is followed by
our work for the QoS-aware Web services discovery.
Basic.Web. Services. Discovery. .
and. its. Extensions
The following sections will describe the generic Web services architecture and its
support for Web services discovery.
Web.Services.Architecture
An option for viewing the Web service architecture is to examine the emerging Web
service protocol stack. The stack is still evolving, but currently has following five
major layers (Sollazzo, Handschuh, Staab, & Frank, 2002) as shown in Figure 1.
Web Serv ces D scovery and QoS-Aware Extens on
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
of Idea Group Inc.
Pages:
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403