A Web service operation is an interface to a public Web service operation.
Sybase SOA products allow you to use standard SOAP Web services. When you reference a Web service, you are not accessing the actual service; you are accessing the WSDL document for that service.
You do not define Web services like you do database and messaging services. Instead, you discover existing Web services in UDDI registries or other locations and add them to a project. This information is then available for use as a separate service or in a business process.
When searching the UDDI repository, you are searching each business and service to find a match with the metadata you entered. Services that are stored in a UDDI registry must contain at least a schema specification, an application specification, and an operator specification. Eligible Web services must employ a SOAP/HTTP transport.
Web services technology is based on a service-oriented architecture with the following components:
Web services used as one-way or request/reply operations are supported. One-way operations are used when the engine must send a message to a Web service and no response is expected. Request/reply operations are used when the Web service sends a request and then waits for a response. All transactions are treated as sequential.
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