What each one is for
Boomi is integration middleware. It exists to move data reliably between core systems, at volume, with the monitoring and error handling that a business-critical connection requires. Those projects are scoped, staffed, and maintained — and for what they do, that seriousness is appropriate.
Parabola addresses the work that sits between those systems and never gets its own project. A reconciliation someone runs every Monday against a file a partner emails. A vendor list that has to be normalised before it is usable. An exception queue worked by hand because no system owns it.
Different jobs, not competing ones
It is worth being direct: if the requirement is a durable connection between two systems of record that the business depends on daily, Parabola is not the answer and Boomi is a reasonable one.
The reason both come up in the same conversation is that buying integration middleware does not make the manual work disappear. The long tail — the reconciliations, the cleanups, the exception handling — is usually too specific and too changeable to justify a project, so it stays with the people doing it by hand.
Which one is right for your team
Choose Boomi for core, high-volume, business-critical integrations delivered and maintained as a project.
Choose Parabola for the recurring operational processes around them, owned by the finance or operations team, where the inputs are messy and the rules change often.