25. The method for representing information in a computer system according to claim 15, further comprising the steps of: evaluating a natural language user input expression by sequential application of an augmented transition network parse based on identification of the function of a recognized expression in said knowledge representation database, and by parsing by differences based on the evaluation of said recognized expression and said identified function; wherein a recognized expression corresponds to a name associated with a record in the knowledge representation database, and the function of said recognized expression corresponds to the system concepts in a descriptive network of said recognized expressions.
25. The method for representing information in a computer system according to claim 15, further comprising the steps of: evaluating a natural language user input expression by sequential application of an augmented transition network parse based on identification of the function of a recognized expression in said knowledge representation database, and by parsing by differences based on the evaluation of said recognized expression and said identified function; wherein a recognized expression corresponds to a name associated with a record in the knowledge representation database, and the function of said recognized expression corresponds to the system concepts in a descriptive network of said recognized expressions. 26. The method for representing information in a computer system according to claim 25, wherein the recognition of the user input expression occurs by matching the input expression to names of records in said knowledge representation database and associating with said input expression the library system concept in the parent fundamental relationship of said records.