Sftwr dvlmnt rjt r notorious fr hving a high filur rt. In th ntxt f this r, "failure" is dfind , "nt meeting th rjt nr' xttin nd/r ttd ruirmnt". Thi wuld inlud such things filur to function in the intndd way dfind in a requirements dumnt, not btining th required rfrmn tndrd, ging so far vr budgt tht the rjt is canceled, r incurring many bug tht th end-users viw th system unusable.