How to mandate if a file updated in RTC another file also needs to updated ?

I have one question on RTC.

My scenarios is something like this. When a developer make any changes in a file, while delivery the change set he need to update anther file and include that in the same change set. For example. If developer make  change in File "A", then along with delivering changes of File "A", he need to change and deliver "File B" as well.

Is there any rule, which can use used to handle the specific scenario.