2. The computer program product of claim 1 wherein the particular business data element is a first business data element of the plurality of business data elements, the counter is a first counter of a plurality of counters associated with the plurality of business data elements, wherein the first counter is associated with the first business data element, the computer program product being operable to cause data processing apparatus to: identify an instance of the first business data element in the first electronic document; increment the first counter in response to identifying the instance of the first business data element; identify an instance of a second business data element of the plurality of business data elements in the first electronic document; and increment a second counter of the plurality of counters, wherein the second counter is associated with the second business data element in response to identifying The instance of the second business data element.
2. The computer program product of claim 1 wherein the particular business data element is a first business data element of the plurality of business data elements, the counter is a first counter of a plurality of counters associated with the plurality of business data elements, wherein the first counter is associated with the first business data element, the computer program product being operable to cause data processing apparatus to: identify an instance of the first business data element in the first electronic document; increment the first counter in response to identifying the instance of the first business data element; identify an instance of a second business data element of the plurality of business data elements in the first electronic document; and increment a second counter of the plurality of counters, wherein the second counter is associated with the second business data element in response to identifying The instance of the second business data element. 13. The computer program product of claim 2 wherein the plurality of counters is used to identify usage trends of business data elements.