15. The computer readable storage medium of claim 12 , the program further comprising: outputting a result indicating which of the first data representation of the first document and the second data representation of the second document has the smaller complexity score.
12. A computer readable storage medium having a computer program for assessing complexity levels of data representations, the program having instructions for performing: obtaining a first document having information associated with a first data representation being used to model a concept and a second document having information associated with a second data representation being used to model the same concept; prompting a user to provide individual element values for individual element objects contained in the data representation, individual attribute values for individual attribute objects contained in the data representation, and nesting values for nesting levels contained in the data representation; inputting the element values, the attribute values, and the nesting values received from the user in a table of values; analyzing structural components of the first document and the second document to assess a complexity score for the first data representation associated with the first document and a complexity score for the second data representation associated with the second document, wherein nesting levels of structural components in a respective document being analyzed and individual values assigned to different types of structural components in the respective document being analyzed are factored into computing the complexity score for the respective document, a customizable nesting value assigned to a nesting level being multiplied against all of the individual values of the structural components residing at the nesting level, the complexity score of the respective document being impacted by an attribute structural component of the respective document; and determining which of the first data representation of the first document and the second data representation of the second document has a smaller complexity score, wherein the structural components comprise element objects and attribute objects, the element objects comprising a first element object having a first individual element value and a second element object having a second individual element value that is different than the first individual element value, wherein, to determine the complexity score for the respective document, the customizable nesting value of a nesting level for each element object within a respective data representation is multiplied against an element value for the element object and the customizable nesting value of the nesting level for each attribute object within the respective data representation is multiplied against an attribute value for the attribute object to determine complexity levels of the structural components of the data representation, the complexity levels of the structural components being aggregated.