I-A420 WPL6 Tee ipayipi elifanelana namachweba amathathu, ikakhulukazi asetshenziselwa ukuhlukanisa ipayipi libe ngamagatsha amabili noma ahlanganise amagatsha amabili ngepayipi elilodwa. Okujwayelekile okujwayelekile kuyizinkomba ezilinganayo ze-ububanzi kanye nokunciphisa ama-tees. Esandleni sohlelo lwepayipi, ukwakheka kwe-tee kungashintsha kalula ukuqondiswa kokugeleza koketshezi ukuze kufezekiswe umsebenzi we-branching noma ukuhlanganisa.
