Tracking down model calls

Hi,

Have been having a re-occurring issue with some of the apps I have built. Sometimes I am updating a sites functionality when I find myself having to modify a model. This means tracking down everywhere that model is called.

Does anyone have any tips about how this can be, or should be handled, more efficiently or properly.

Just to note this is not when I can simply add a similar function to the one being modified, but need to modify an existing function. Specifically when I need to modify the terms used in the model function.

Any advice or tips about how to avoid this or do this more efficiently would be warmly welcomed.

Thank you in advance,

Paul.