Extending Interactive Web Services for Improving Presentation Level Integration in Web Portals

Presentation level integration now becomes an importantand fast growing trend in enterprise computing. Portal-based compositeapplications use portlet and interactive web service, which usuallyoffers several portlets, as their basic constituents. Hence, portletdescription and discovery are the key issues that have to be consideredfor the development of portal-based composite applications. This paperproposes a novel concept POI (Presentation Oriented Interface) todescribe the presentation features of a portlet, so that interactiveweb services may be extended to facilitate the selection andinteroperation of portlets. Portlet discovery can be effectivelyachieved based on the calculation of POI similarity that considers bothtype and structure similarity. Experiments show that the proposedapproach can improve the satisfaction of portlet discovery, and alsofacilitate the portlet interoperation, thereby achieving betterapplication integration at presentation level.