Question for all of you wildly intelligent and creative folks...

How are you mapping Enterprise Data through the ATUM? 

The preference for my Enterprise Data group is to be dis-integrated from the rest of technology at the ITRT perspective. I see it both ways I suppose: they have cost centers focused on appdev & support but they don't want to be lumped into everyone else's appdev.

I would think this has potential impact to benchmarking. Unless, carving out EDO is such a common practice that Enterprise Data appdev may actually appear in benchmarking datasets.

Does anyone else customize to call out Enterprise Data separate from the rest of Tech?
#CostingStandard(CT-Foundation)

Not sure what you mean exactly with Enterprise Data or EDO, but I'd be interested in answers myself, @Stephanie Geltrude.
Benchmarking is always a tricky proposition: we've done external benchmarks, and they required extensive reconciliation to ensure some kind of alignment. At some point we found out we had 4 times more Management & Administration labor costs than our peer group. They asked us tricky questions about that.
If you do some kind of high-level report on App Dev/Support, you'd better fine tune it for its intended purpose. 
I doubt there's a one-size-fits-all approach to benchmarking.

We extended ATUM and collected all these costs in a custom IT Tower to separate them from the original IT cost. This is also something what we did in past (non-TBM related ) IT benchmarks. 

Our Enterprise Data Management consists mainly of Data Strategy/Governance as well as financial data management in SAP. Both can be argued as IT or non-IT costs. The separate Tower was somewhat a compromise (The team is in our IT orga).