What is the ResearchKit class prefix "ORK" an abbreviation for?

Question

ResearchKit's classes (etc.) use "ORK" as a class prefix: ORKConsentDocument, ORKTaskViewController, ORKVisualConsentStep, etc.

I hypothesize the RK stands for ResearchKit, but what about the O?

I'm looking for an official or authoritative source; no speculative answers please.

Answer 1

It does stand for "Open", but the project is just "ResearchKit". We needed a third letter to reduce the chance of prefix collision when the project is incorporated in peoples' apps.