Web Services for Remote Portals (WSRP)Abstract

Web Services for Remote Portals (WSRP) are visual, user-facing web services centric components that plug-n-play with portals or other intermediary web applications that aggregate content or applications from different sources. They are designed to enable businesses to provide content or applications in a form that does not require any manual content- or application-specific adaptation by consuming intermediary applications. As Web Services for Remote Portals include presentation, service providers determine how their content and applications are visualized for end-users and to which degree adaptation, transcoding, translation etc may be allowed.
WSRP services can be published into public or corporate service directories (UDDI) where they can easily be found by intermediary applications that want to display their content. Web application deployment vendors can wrap and adapt their middleware for use in WSRP-compliant services. Vendors of intermediary applicatios can enable their products for consuming Web Services for Remote Portals. Using WSRP, portals can easily integrate content and applications from many internal and external content providers. The portal administrator simply picks the desired services from a list and integrates them, no programmers are required to tie new content and applications into the portal.
To accomplish these goals, the WSRP standard defines a web services interface description using WSDL and all the semantics and behavior that web services and consuming applications must comply with in order to be pluggable as well as the meta-information that has to be provided when publishing WSRP services into UDDI directories. The standard allows WSRP services to be implemented in very different ways, be it as a Java/J2EE based web service, a web service implemented on Microsoft's .NET platform or a portlet published as a WSRP Service by a portal. The standard enables use of generic adapter code to plug in any WSRP service into intermediary applications rather than requiring specific proxy code.
WSRP services are WSIA component services built on standard technologies including SOAP, UDDI, and WSDL. WSRP adds several context elements including user profile, information about the client device, locale and desired markup language passed to them in SOAP requests. A set of operations and contracts are defined that enable WSRP plug-n-play.
http://www-106.ibm.com/developerworks/webservices/library/ws-wsrp/?open&l=101,t=gr