1. A computer-readable medium having computer-executable instructions, when executed by a computer configured to: receive an input schema, the input schema specifying how to represent one or more elements in a document; receive one or more instance documents; generate one or more rules from the one or more instance documents; analyze the input schema for conformance to the one or more rules; and if the input schema does not conform to the one or more rules, generate a modified schema based on the input schema, the modified schema specifying how to represent the one or more elements in the document in conformance with the one or more rules.
1. A computer-readable medium having computer-executable instructions, when executed by a computer configured to: receive an input schema, the input schema specifying how to represent one or more elements in a document; receive one or more instance documents; generate one or more rules from the one or more instance documents; analyze the input schema for conformance to the one or more rules; and if the input schema does not conform to the one or more rules, generate a modified schema based on the input schema, the modified schema specifying how to represent the one or more elements in the document in conformance with the one or more rules. 3. The computer-readable medium of claim 1 , the one or more rules specifying how to represent the one or more elements according to a specified type.