The perpetual question for enterprise architects is, which is the best enterprise architecture management tool. I have my favourite based on the past years experience, which I selected after a careful analysis of potential candidates. One of my clients requested a comparison between two tools and I would share the results here. Shortly the two tools are SAMU from Atoll and EA from Sparx. The summary of the comparison is, that they have to exchange the name they have! SAMU (System Architecture Management Utility) is a real enterprise architecture management tool, with all necessary aspects, while EA (Enterprise Architect) is a great system design tool, with very limited capability to be extend to enterprise wide repository.