US Patent 8046389 Automatic data determination

In a computing system, a value that a user enters under guidance of a graphical user interface may be received for association with a field of a document. The received value is used to determine a value to be automatically associated with at least another field of the document. Information indicating the value received in the input field and a rule used in determining the value for the at least another input field are stored in one or more fields of the document associated with the at least another input field.