I'm looking for a Business Intelligence tool that can generate graphs and reports based on a given input. Users should be able to select different variables, indicators, etc. and then be presented with graphs, charts and analysis of the selected data.
Must have the following characteristics:
free or open source
embeddable in an website
input should come from Excel files
Basically, I'm looking for something like http://www.tableausoftware.com/ , but the open source equivalent to this one, if it exists.
While trying the question, I just came across http://art.sourceforge.net/. I.m looking into it now, but any other suggestions are very welcome.