The SPDN data network is designed to share information on pest diagnostics among:
Individual states in the southern region that each have their own local diagnostics database.
A centralized SPDN regional center that pools information from southern states into a single southern regional database at the University of Florida.
A national NPDPDN central database at Purdue University that pools information from five regional centers.
The data network thus provides a way for states to send their data to the regional center, and a way for the regional center to forward this data to the national center.Descriptions of various software components needed to implement this network are described.