Abstract
We developed "PDA Based Support System to Diagnose Crop Disease" as the system of applying PDA (Personal Digital Assistant) to agricultural sector, which supports workers to diagnose crop pathological conditions in the field. This system is a web based client/server system, which adopts database of crop pathology that is open to the public on the web and consists of web, mail and mailinglist. The web functions in this system used by workers consists of "Log of Crop Pathology Occurring" which makes reference to and shows the log of crop disease occurring, "List of On-requesting to Diagnose Crop Pathology" which administers the mail of on-requesting to diagnose crop disease, "Mailinglist" which makes reference to and shows mailinglist's log and "External DB Link" which makes reference to and shows external disease database.
