<a href="http://www-106.ibm.com/developerworks/webservices/library/ws-wsxl/">Web Service Experience Language</a>. This is an IBM authored specification designed to enable the
syndication and aggregation of applications, primarily for portals. Interestingly, it includes the specification of an Adaptation Description Language which allows application authors to specify how parts of the application can be changed or accessed by the aggregator, e.g. background colours, prices, product identifiers etc.