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.
In most cases, you should plan to save tax files for at least three years following the date of filing. In some instances, it may be necessary to keep tax documents for a longer period of time. For example, the IRS advises that employers should keep employment tax records for four years. Individuals who report a loss from worthless securities should keep records for seven years, and those who neglect to report 25% or more of their income should keep files for six years.