Java Portlet API establishes interoperability between portlets and portals. All portlets written to a portlet API will run on all compliant portal servers.
Java Portlet API will cleanly separate portlets from the surrounding portal server infrastructure so that the portlets can run on different portal servers, just as servlets can run on different application servers.
Java Portlet API and WSRP will be able to cooperate in a beneficial way. WSRP services could be integrated in portals through portlet proxies written to the Java Portlet API. Conversely, portlets could be wrapped in and published as WSRP services.
From Portal standards for Web services, Network World Tech Update, 09/02/03.
