A very nice clear presentation of an often (and sometimes deliberately) confusing set of terms.  I have one other suggestion, though.  The term business intelligence system is correctly defined in this article.  The term business intelligence applications is also correctly defined.  But business intelligence is something that either exists or doesn't exist in the brains of managers and executives in a business.  The systems and applications are only useful if they are serving someone who is willing to take the information delivered and use it to make intelligent decisions.