1. A data processing system for routing data processing among different processing channels based on source-error probabilities, the data processing system comprising: a memory device with computer-readable program code stored thereon; a communication device; a processing device operatively coupled to the memory device and the communication device, wherein the processing device is configured to execute the computer-readable program code to: receive a data processing job comprising at least one data processing item; determine a first source of the at least one data processing item; determine a source error probability associated with the first source of the at least one data processing item; and based on the determined source error probability, route the at least one data processing item for data processing to an automated data processing network or a manual data processing network.