Rspnsvnss s cncpt f cmptr scnc rfrs t th spcfc blty f systm r fnctnl nt t cmplt ssgnd tsks wthn gvn tm. Fr xmpl, t wld rfr t th blty f n rtfcl ntllgnc systm t ndrstnd nd crry t ts tsks n tmly fshn.
n th Rctv prncpl, Rspnsvnss s n f th fndmntl crtr lng wth rslnc, lstcty nd mssg drvn.
t s n f th crtr ndr th prncpl f rbstnss (frm v prncpl). Th thr thr r bsrvblty, rcvrblty, nd tsk cnfrmnc.