Previous columns have separately addressed Web services and also enterprise portals. Last month's column) bridged both topics and discussed the use of Web services within enterprise portals, through specification of Web services for remote portals (WSRP). For this and last month's columns, I have drawn on the WSRP specifications and also the "WSRP Overview" presentation on the OASIS Web site at http://www.xml.org/, as published by the OASIS WSRP Technical Committee. Their excellent work with WSRP is acknowledged here. With their permission, a number of figures from that presentation are included in this column. Please note that these figures are sourced from OASIS, copyright 2002-2003 OASIS, all rights reserved.

In Part 1 of this WSRP column, we discussed a scenario where an employee portal consumes a service provided by the human resources (HR) function within a corporation. Now let us assume the human resources department runs a portal that provides various HR related portlets. Some are intended for use only by HR staff, such as a payroll portlet or a staff record portlet. However, there are other portlets that are of interest to all employees. For example, a variable pay portlet calculates the variable pay based on current revenue and an HR information portlet providing HR related news.

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