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.
Also if you are claiming a big capital loss or gain, you need to keep the documents as evidence for tax reasons which means holding on to it for up to seven years. Medical Records, Benefit Receipts and Explanation of benefit statements (7 years for claimed deductions, 1 year otherwise for insurance claim verification)