Impact analysis tools for Informix?

Hello folks We are after a tool to keep track of the effects of changing one module in an Informix 4GL application. So the tool would have to keep track of all calls to the module in other modules. We have used a similar tool "Perfect Impact" for our Ingres systems, but would like to find a tool that works with Informix and other RDBMS systems. I'd be grateful if for pointers to any tools that are available. ta very much Alan -- Alan Williams 15 Albury Walk NORWICH NR4 6JE England +44 (0)1603 458525 alan@bearsden.demon.co.uk