Abstract: A method of displaying a production schedule in three dimensions. Time periods are displayed along an x-axis. Within each time period, an available-capacity rectangle has a width that is all or part of the width of the time period, such that the width represents the proportion of that time period during which capacity is available. Capacity-consuming rectangles are layered on top of the available-capacity rectangles, and include setup rectangles and production rectangles. The width of these rectangles represents the proportion of capacity consumed. The height of production rectangles represents production volume. Cost rectangles may be placed in front of the capacity consuming rectangles, and have a depth that represents relative monetary cost.