The assignments for zh and z also match international conventions, as those letters are pronounced like sh and s. Several of the assignments which do not match international braille have the values of German Braille:  ch for c (ch),  j for y ,  z  for tsh,  s  for z,  sch  for sh ,  ß  for s. Letters which are not basic to the German alphabet (c, q, x, y) have been reassigned.
The zh and z assignments align with international standards, as these letters are pronounced similarly to sh and s. Some non-matching assignments in German Braille correspond to values from German Braille: ch for c (ch), j for y, z for tsh, s for z, sch for sh, ß for s. Letters not part of the basic German alphabet (c, q, x, y) have been redefined.