The life-cycle cost estimate is basically looking at it from cradle to grave. There are really five phases. There is the development work to determine what you need on the asset; the acquisition itself of the asset; the sustainment cost, which is the maintenance side; the operating of the asset itself; and then the disposal of the asset. Those are the five components of the life-cycle cost.
On May 1st, 2017. See this statement in context.