1. A computer-implemented warranty knowledge base construction system, comprising: a computer having: a user interface for receiving a first rule related to vehicle repair claim processing; a rules syntax data store that stores syntax rules for constructing repair claim-related rules; a knowledge base generator module connected to the user interface and to the rules syntax data store for determining whether the first rule is in an acceptable syntax based upon the stored syntax rules; and a knowledge base system wherein the first rule is used to process repair claims.