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.
How long should I keep my returns? In most cases, you should plan on keeping tax returns along with any supporting documents (e.g., W-2s, mileage logs if you itemize, etc.) for a period of at least three years following the date you filed or the due date of your tax return, whichever is later.