Actuate (the people behind BIRT) gives you access to the results of the current Forrester Wave for Open Source Business Intelligence.
Forrester Wave is done by Forrester, a company that evaluates and compares available software and technologies ending up in a side by side comparison.
Questions you should ask yourself before starting a new BI project as per Forrester (see post for more):
- Do you understand the categories of BI and BI-related open source tools?
- Are you clear on the differences between community and commercial versions of the tools?
- Are you looking for a community version, a commercial version, or a mix?
Lots more details, including the line-by-line items scores, can be found in the detailed research report.