It depends on what exactly you mean by "Atomic Transaction". If you are referring to database transactions, then DE is not that. But DE helps you implement pote

It depends on what exactly you mean by "Atomic Transaction". If you are referring to database transactions, then DE is not that. But DE helps you implement potentially long-running multi-step business transactions, a.k.a. workflows, sometimes spanning over days or weeks. Oftentimes, these transactions are atomic, but don't satisfy the isolation requirement of ACID transactions, i.e. partial outcomes of in-flight flows may be visible to external observers.