12 The following workflow diagram depicts a serial number with bar code integrated PCB production using theWellerWX station.The workflow includes the interactivity of the operator and the dialog of theTraceability System with theWX-Station. TRACEABILITY Traceable Process Control. TRACEABILITYWORKFLOW CUSTOMER TRACEABILITY SYSTEM TRACEABILITY INTERFACE RS 232, USB CONTROL SYSTEM ERP MES IN 1 2 3b 4a 6a WELLER 3b 4a 6a 4b EQUIPMENT XML Unit Data OURWXTEAM IN 12