1. A data processing method for a clinical decision support system, comprising: inferring input data having a natural language format based on an Ontology technique to recognize the rules coming from the input data; inferring storage data having a natural language format and stored in rule database based on the Ontology technique to recognize at least one storage rule associated with the input rule from the storage data; comparing the input rule to the storage rule using a Self Evolutionary Rule-base algorithm; and updating the storage data stored in the rule database to the input data according to the result of the comparison.