The NORM in Workflows

First, let's define these two different workflow frameworks. ROOM stands for 'Rip Once Output Many'. In this type of workflow, pages are RIPped into an intermediate format, either unscreened raster or screened bitmap. These files are then imposed and, ultimately, sent to proof/film/plate.

NORM, is an acronym for 'Normalize Once Render Many'. To better understand this model, you have to split the process of RIPping into its individual steps, interpreting and rendering (rasterizing/screening).