zero-base
[ zeer-oh-beys ]
/ ˈzɪər oʊˌbeɪs /
adjective
Also ze·ro-based.
without reference to a base figure or to previous practice; according to present needs only, as opposed to a percentage increase or decrease of previous figures: zero-base planning; zero-base inventory.
verb (used with object), ze·ro-based, ze·ro-bas·ing.
to apply zero-base methods to.
Origin of zero-base
First recorded in 1965–70