Audit parameters should be persistent in Db

When you start an audit, an new Audit object is created into Db with a reference to an Audit Template object. When processing an audit request, parameters taken into account by the Watcher DE come from Audit object itself and also from Audit Template ones (goal name, ...).

Problems:

If we update the Audit Template parameters or if we remove the Audit Template, we lose important information about the Audit itself. What would be the consequence for a periodic audit ? What about data integrity for soft-deleted audit objects (useful for history) ?

If we introduce parameters for goals (as thresholds, ...) , we should be able to update them. So how to keep persistent data for all audits done to satisfy such configurable goals ?