It is an XML-based configuration file used to populate the container registry accessible via the JNDI API. See in the Java WS Core Developer's Guide] for details.

In Java WS Core, resources are managed and discovered via ResourceHome implementations. The ResourceHome implementations can also be responsible for creating new resources, performing operations on a set of resources at a time, etc. ResourceHomes are configured in JNDI and are associated with a particular web service.

Axis server-side WSDD configuration file. It contains information about the services, the type mappings and various handlers.

WSDL is an XML document for describing Web services. Standardized binding conventions define how to use WSDL in conjunction with SOAP and other messaging substrates. WSDL interfaces can be compiled to generate proxy code that constructs messages and manages communications on behalf of the client application. The proxy automatically maps the XML message structures into native language objects that can be directly manipulated by the application. The proxy frees the developer from having to understand and manipulate XML. See the WSDL 1.1 specification for details.

The WS-Notification family of specifications define a pattern-based approach to allowing Web services to disseminate information to one another. This framework comprises mechanisms for basic notification (WS-Notification), topic-based notification (WS-Topics), and brokered notification (WS-BrokeredNotification). See the OASIS Web Services Notification (WSN) TC for details.

Web Services Resource Framework (WSRF) is a specification that extends web services for grid applications by giving them the ability to retain state information while at the same time retaining statelessness (using resources). The combination of a web service and a resource is referred to as a WS-Resource. WSRF is a collection of different specifications that manage WS-Resources.

This framework comprises mechanisms to describe views on the state (WS-ResourceProperties), to support management of the state through properties associated with the Web service (WS-ResourceLifetime), to describe how these mechanisms are extensible to groups of Web services (WS-ServiceGroup), and to deal with faults (WS-BaseFaults).

For more information, go to: http://www.globus.org/wsrf/ and OASIS Web Services Notification (WSRF) TC .