Here's an example of a RapidMiner process that generates reports. One report is a PDF, the other is a static Web page.
The basic flow is to start with a "Generate Report" operator. This sets up the name, type and location of the report; in this case a pdf file. From then on, the name of the report is used by subsequent operators to add things to it. In the example, the next operator creates a "series multiple" plot of the attributes of the iris data set plotted against the label. From there, a page break is added and finally another plot is added, this time of the cluster determined from a k-means clustering algorithm. The final report is located in c:\temp\Iris.pdf.
Multiple reports can be created so it would be possible to have many reports created in a single process.
In the example, a "generate portal" operator creates another report and similar graphs are reported to it. In this case, a static web site is created at c:\temp\RMPortal\irisweb.html. In the example, a tab is created that contains text and it is shamelessly gratifying to note that this can be raw html.
Presumably, the enterprise versions have richer graphics and more control. RapidAnalytics would allow reports to be created in accordance with a schedule thereby creating a standalone Web site acting as a reporting portal.