Ntinye mmepe, nrụpụta na ahịa, dị ka igwekota mbụ na-elekọta ụlọ ọrụ mbụ.
Ngwaọrụ igwekota igwe eji eme ihe bụ ihe eji eme ihe na nri, na ụlọ ọrụ kemịkalụ maka ịgwakọta, na-agbasa, ude, mmanụ, mmanụ, mmanu mmanu na ya. Igwe eji eme ihe bu n'ime ite mmiri, ite ite, olulu elem, usoro na-ebuli elu (PLC bu nhọrọ), wdg. Igwe ahụ nwere ọrụ dị mfe, ike dị mma, ezigbo homogeneity, arụmọrụ dị elu, obere olu na ọkwa akpaaka na elu dị mfe. Mụta nkọwa ndị ọzọ gbasara oghere faili Mineter na Maxwell.