Position History Reporting

Summary

Is it possible to report on changes to positions themselves over a period of time

Content

I have a requirement to report on historical changes to positions in OTBI,  we use positions widely for the purposes of budgeting and forecasting.  Due to this we have created a number of DFF's against the positions themselves, this information isn't against the employee as the change is an attribute of the position not the person.  I have checked various documents and threads on here but I don't see anything which addresses my requirement.

Any help/guidance would be much appreciated.