AbstractA general-purpose software tool has been developed to aid production planners in high-quantity assembly-line plants. The logic incorporated in the software employs smoothing techniques for a mix of products based on total cumulative man-weeks of work. It uses a graphic interface with the production planner to give him a number of smoothing options as well as to let him make any desired changes. The logic allocates the total work to each assembly line and produces a detailed weekly schedule for each product. It also presents numerical and graphic results in formats familiar to the planner to judge the suitability of the plans generated.