Papilihan miwah undagan karakter minab dados kunci sané kakaryanin mangda prasida dados pamargi identifikasi (kunci diagnostik) utawi mapaiketan sareng urutan alami utawi filetik taksa ring kunci sinoptik.
The choice and sequence of the characters may be artificial in keys designed purely for identification (diagnostic keys) or more closely related to the natural or phyletic order of the taxa in synoptic keys.