Labels:text | screenshot | font | number | line | diagram OCR: BIG RED SELF TEST STRUCTURAL MODEL [Root] [Root] [Root] ... BIGRED LE REDTEST LE,REDSALES L'ECORP L'EDEVP L'E MRKT - 且S2 - As3 SueP JamesE SueJ JoeR JohnP SeeJ & BobE EvanE BillE LiP AlexE BoJ AS1_SYS BS2_SYS BS3_SYS Which implementation method was used by the BIG RED SELF TEST company when they upgraded to NetWare 4?