The Boston Globe used computer assisted reporting in their investigative series on executive pay in Massachusetts firms.
The story compared two sets of documents: reports on salaries, bonuses, and other pay executives received from companies, and reports on the same information from firms.
The kind of software needed to analyze this information was a program that could compare two sets of data from two different documents by finding the relationship between the two numbers. The reporter needed to be able to enter the information needed from the documents into the software program and then be able to interpret the results. The reporter found that the companies in question made some small and some huge errors in reporting executive pay, often times hugely misrepresenting the salaries.