2. The method according to claim 1 , further comprising: establishing a database of hierarchical medical attributes, the attributes arranged in a parent-child relationship fashion in accordance with medical ontology; and symbolically representing each attribute as a data object.
3. The method according to claim 2 , wherein the medical attributes include drug, disease and allergy term definitions, the method further comprising: establishing interaction dimensions between and among the drug, disease and allergy term definitions; and defining a severity score for a particular drug based on the severity of a drug-drug interaction dimension.