THIS PAPER PRESENTS TECHNICAL METHODS FOR JUSTIFYING AND SELLING JUST-IN-TIME PROJECTS TO MANAGERS AND OTHER EMPLOYEES. EMPHASIS IS GIVEN TO CYCLE TIME CONTROL AND TO RUN SIZING METHODS, WITH ILLUSTRATIONS GEARED TO CUSTOM AND CAPTIVE PLASTIC MOLDING OPERATIONS. THIS PAPER PROPOSES THAT A LONG-TERM VIEW BE TAKEN TO THE JUSTIFICATION PROCESS. IT DESCRIBES HOW TO QUANTIFY SIGNIFICANT BENEFITS, INCLUDING THOSE THAT ARE INTANGIBLE TO PREDICT. THIS PAPER PRESENTS TECHNICAL METHODS FOR CONVINCING MANAGEMENT THAT JUSTIFICATION CRITERIA ARE VALID, AND FOR CONVINCING EMPLOYEES THAT THE PLAN WILL SUCCEED.