scope:

The purpose of this document is to define the requirements of the OCR/VCS Standard interface and to convey these requirements in context to the reader.
The interface specification is contained in the two appendices of this document, both of them normative:
- System Design Description (SDD)
This document specifies the class model, dynamic behaviour and exception handling of the interface. The API is included.
- Interface Design Document (IDD)
The IDD in Annex B defines the ""payload"" information for the interface. That is the data which is required for processing a mailpiece e.g.
Figure 1 - Interface environment of an Enrichment Device
As shown on Figure 1, there are many interfaces from an Enrichment Device to the rest of the system. This document is only concerned with the Mailpiece Processing part of the complete Standard Interface.
The mailpiece processing is concerned with the passing of a mailpiece to an Enrichment Device for processing.