VirtueMart

well
consider that each market has it own rules

for example for one customer we have this workflow inside virtuemart (this step are if everything check goes fine)

new -> pending -> payment check -> ok payment -> stock check -> ok stock -> wip -> ok wip -> shipped

so indeed there are certain ACTIONS that need to be defined in aset of rule in order to choose between which status they have to happen

e.g. a user could decide to have the order mail send only after ok payment status

Status should easily be added or removed, this is how client of mine works.
(New)-+-> Pending ---+ | V | >Processing - | | | | V | > Confirmed --> Cancelled > Refunded | | -----> Shipped ------------------->(End)

Correct; the intention is to add the option in the order status edit screen to create status dependencies. By default there will of course be a standard flow, something like: (New)-+-> Pending ---+ | | | | V |
> Confirmed --> Cancelled -> Refunded | |
----> Shipped ------------------->(End)
with options to change/remove dependencies/order statusus.

this invokes a relation model that should be created by the user too
i mean, every business has different logic. for sure we can deploy a default behaviour but imho we must give to the user the possibility to change this behaviour