Just kidding, but I got some details back from Lisa C, and she appears to have some very specialised requirements for her system. I have suggested that it might be better if we work together to develop a “base system” which would include the complete logging functionality, and then she can customise and/or extend the reporting/analysis interface as required.

I think this approach should work quite well, allowing me to collaborate on a logging module, and to refine the database schema, then develop a generic, “useful-across-the-board” analysis interface, which should be capable of being extended easily. Metabase, here I come.