Prdctv mntnnc tchnqs r dsgnd t hlp dtrmn th cndtn f n-srvc qpmnt n rdr t stmt whn mntnnc shld b prfrmd. Ths pprch clms mr cst svngs vr rtn r tm-bsd prvntv mntnnc, bcs tsks r prfrmd nly whn wrrntd. Ths, t s rgrdd s cndtn-bsd mntnnc crrd t s sggstd by stmtns f th dgrdtn stt f n tm.
Th mn ppl f prdctv mntnnc s t llw cnvnnt schdlng f crrctv mntnnc, nd t prvnt nxpctd qpmnt flrs. By tkng nt ccnt msrmnts f th stt f th qpmnt, mntnnc wrk cn b bttr plnnd (spr prts, ppl, tc.) nd wht wld hv bn "nplnnd stps" r trnsfrmd t shrtr nd fwr "plnnd stps", ths ncrsng plnt vlblty. thr ptntl dvntgs ncld ncrsd qpmnt lftm, ncrsd plnt sfty, fwr ccdnts wth ngtv mpct n nvrnmnt, nd ptmzd spr prts hndlng.
Prdctv mntnnc dffrs frm prvntv mntnnc bcs t ds tk nt ccnt th crrnt cndtn f qpmnt (wth msrmnts), nstd f vrg r xpctd lf sttstcs, t prdct whn mntnnc wll b rqrd. Mchn Lrnng pprchs r dptd fr th frcstng f ts ftr stts.
Sm f th mn cmpnnts tht r ncssry fr mplmntng prdctv mntnnc r dt cllctn nd prprcssng, rly flt dtctn, flt dtctn, tm t flr prdctn, nd mntnnc schdlng nd rsrc ptmztn. Prdctv mntnnc hs bn cnsdrd t b n f th drvng frcs fr mprvng prdctvty nd n f th wys t chv "jst-n-tm" n mnfctrng.