Listed my experiences working with data collection, databases, research, etc. but since there is a specific area now "data warehousing" it was apparent that using transferable skills was not part of the solution.
First, I would look at the company's system requirements and management's expectation. Second, I would meet with individual departments and find out their expectations. Third, I would create a data flow diagram, document flowchart, and/or system flowchart to determine the logical flow of data and physical dimensions of the system. From the information collected, it will be easier to decide the type of software upgrade that is the best fit for the company.