Event Packet

One of the underlying principles of the system is the event packet, this is a packet of information that is used to define an operation in its entirety. These packets are self contained, holding all the information about associated forms, operation criteria, actions carried out on picking, and so on.

Once a packet has been defined and submitted to the system, then there should be no requirement from external sources required for that packet to complete its task. Where packets required run-time data, the method for ascertaining this information should defined within the packet. As event packets are run autonomously, all expected exceptions (errors) must be handled internally.