BI for MBA students

I've got the opportunity in 6 weeks to guest lecture for one eventing to an MBA class about Business Intelligence systems.  The course is a general Information Systems class that the MBAs are required to take, so I'd like to make sure the conversation does an effective job engaging them and helping them understand the role systems and technology play in supporting decision making.  Any thoughts or advice on important things to make sure I cover in 2 hours?

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