| Universal Description, Discovery and Integration of Business for the Web, June 2002. http://www.uddi.org/. |
....components. However, in order to utilise these published services, developers must first locate them. Unlike Jini, Web Services do not belong within well defined class hierarchies, and thus it is not feasible to locate services through class labels. Instead, the uddi service directory [14] provides a mechanism whereby service providers can register information about themselves, such as physical address, contact phone number, etc; the types of business they are involved in; and references to the service descriptions. uddi registries provide this information in response to ....
....In this section, we describe the principles underlying the architecture of uddi m . Details can found at http: www.mygrid.ecs.soton.ac.uk software service di rectory . We considered the following requirements during the design: 1. uddi m should be compliant with the original uddi [14] specification and support future development in this direction. 2. Existing client and service provider applications should be ported easily to . The key components of the architecture are depicted in Figure 2, where we see that uddi m is the point of contact for clients, either ....
Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
....them with parameters and other command line arguments. We use such a service to export complex FORTRAN code (written by the chemists) as a Web service, without having to modifying it. In the future, clients will be able to retrieve a handle to such a service using standard mechanisms (e.g. UDDI [6]) and will be able to access the scientific codes, as shown in Figure 7. We prototyped a generic tool that exposes any non Grid aware code as a Grid service. This tool accepts the interfaces that the service should export (using some standard format, e.g. IDL, WSDL, Java interfaces) and the ....
Universal Description, Discovery and Integration of Business for the Web, June 2002. http://www.uddi.org/.
....have emerged as a set of open standards, defined by the World Wide Web consortium, and ubiquitously supported by IT suppliers and users. They rely on the syntactic framework XML, the transport layer SOAP [21] the XMLbased language WSDL [20] to describe services, and the service directory UDDI [19]. Web Services therefore look like a strong contender for Grid Computing, as illustrated by the recent Open Grid Service Architecture (OGSA) 7] which extends Web Services with support for the dynamic lifecycle management of Grid Services. The idea of an agent communication language dates ....
Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
....have emerged as a set of open standards, de ned by the World Wide Web consortium, and ubiquitously supported by IT suppliers and users. They rely on the syntactic framework XML, the transport layer SOAP [20] the XML based language WSDL [19] to describe services, and the service directory UDDI [18]. Web Services therefore look like a strong contender for Grid Computing, as illustrated by the recent Open Grid Service Architecture (OGSA) 7] which extends Web Services with support for the dynamic lifecycle management of Grid Services. The idea of an agent communication language dates back ....
Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
....Web Services from an implementation perspective. Web Services generally refer to a three layer system composed of: i) a transport layer based on XML messaging (XML protocol, formerly known as Soap [46] ii) a registry mechanism allowing the advertising and discovery of services based on UDDI [42] and described by languages such as WSDL [45] or DAML S [13] iii) Some workflow system such as XLANG [41] or WSFL [30] It is frequent to hear questions such as Why use agents and not Web Services , What is the difference between Agents and Web Services . The purpose of this paper is to ....
....pursued in different ways. This paper is the first part of a survey of agents and Web services. In a second paper, we will analyse the differences between agent registration mechanisms and Web service advertising using UDDI (Universal Description, Discovery and Integration of Business of the Web) [42] and WSDL (Web Service Description Language) 45] In the introduction, we discussed several motivations for using agents. We see two applications of agents complex interactions for the Grid. i) A computational economy may be a mechanism able to allocate resources in a fair and efficient manner ....
Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
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Universal Description, Discovery and Integration of Business for the Web, June 2002. http://www.uddi.org/.
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Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2003.
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Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
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Universal Description, Discovery and Integration of Business of the Web. www.uddi.org, 2001.
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