Lets start frm basics
Empty Aircraft + Pallets + Pantry = OWE
Also sometimes refered to as DOW
Add Payload ( Pax + Cgo + Crew + Baggage ) you get ZFW
OK I though I was an experienced (Flight Ops) Dispatcher
.. and don't want to sound stupid ... but are you sure that OWE = DOW?
I understand that OWE = Empty mass ...
but for me I would say that DOW = OWE+Crew+Jeppensen+Galley storage+lavatory water+crew baggage (sometimes refered to as BOW)