if it's a project for your employer that you have staff in charge of maintaining, then it's probably a bad choice. but for projects delivered by contractors wh

if it's a project for your employer that you have staff in charge of maintaining, then it's probably a bad choice. but for projects delivered by contractors who provide a fixed service and maintenance term, it's reasonable to provide a fixed end date for the project as a whole, and that's probably less than 12 years.