The Imaging Order Filler Actor represents the information system that receives and processes orders for imaging services.  The Imaging Order Filler is a minor variation of Order Filler in the Structured Workflow (SWF) profile of the IHE Radiology Technical Framework.  It supports the same ordering transactions as found in the SWF profile, but has one required and two optional transactions.  From the perspective of the care providers in this profile, an Imaging Order Filler is a single information system that manages orders and results for a given type of study.