Looking for some basic concepts. I'm planning on developing a tool that will take snapshots of tables after data changes and compare them in order to develop some delta results. These results will be used primarily by already-existing calculation processes to verify financial balances, help determine impact on the overall system, create cases for regression testing, etc. I will include the ability to create sample data based on specific test case criteria. Before I start getting into it, I was hoping for some general feedback.