1 Function point analysis can be used to determine which environment/language/tool is more productive. 2  Function point analysis can provide a mechanism to track and monitor scope creep. 3  Function point counts at the end of each phase/stage of a project can be compared to the function points actually delivered.
You should keep most tax-related documents for a minimum of three years, but it's recommended that you keep them for seven years. If you've gone paperless, then your bank will generally store your statements for seven years, but check to see what your bank's policy is on maintaining its customers' records.
As a rule of thumb, it's safe to say that if there's anything on your return that might elicit interest from the government, you should keep the documentation for three years (or longer). Now keep in mind that you might want to hold on to some records for close to forever. If you sell your home, for instance, the IRS might want to see records of your original purchase, costs for repairs and any statements you might have during an audit [source: Lee ]. Best to keep those around as long as possible.