After the review of the works reported in the literature, a
classification method was proposed. The proposed method is
based on six main categories, as follows:
(A) the original kanban characteristics that were kept in the
adaptation;
(B) the operational differences in relation to the original kanban
system;
(C) the advantages over the original kanban system;
(D) the disadvantages over the original kanban system;
(E) the ways the adaptation were tested;
(F) publication year.