Sorting Mail

Before a letter arrives in your mailbox, it has experienced hundreds of process steps in the journey from sender to receiver.  Automation equipment has photographed the face of the envelope, binarized the image, located the address blocks, decoded the address blocks using optical character recognition (OCR), bar-coded the envelope with invisible barcodes (fluorescent) and robotically sorted the letter by postal zone and carrier route.  Each step in the process represents an event with a location that can track the letter step-by-step.

xtUML is inside the process helping your letter to arrive on time.

xtUML model of letter tracking

xtUML model of letter tracking