Sequential numbering based on relationship class

[RachelMassa]

The features that are collected in the field are related to a record in a table. I would like for the features to be sequentially numbered beginning with the first related feature.

Example: Inspection record created, collected feature ID field starts at 1, 2, 3...etc. New inspection record created, those features ID field again starts at 1, 2, 3... 

Is there a way to do this? 

[ZachBodenner]

To clarify, you have a feature in a map, which you are inspecting in the field and storing those inspections in a related table? And you would like some field in the related table to simply hold the sequential number of inspection that is compared to others related to that parent feature?