Peter Weill's Produced a Study That Identified the 4 Main

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Peter Weill's produced a study that identified the 4 main categories that make up a company's IT portfolio: the IT infrastructure, transactional systems, informational systems, and strategic systems. Weill's research shows that most companies spend a majority of their IT portfolio on the 1.______ and the least amount of money is spent on the 2. __________. A company that is seeking to be highly agile should spend more money on the 3. __________ to provide a nimble platform and less money on the 4. _________ which tends to lock in current business processes.