This paper discusses the development of a software tool that utilizes light-weight versions of 3D digital product models and detailed module construction and erection schedules to visually validate and modify the erection sequence. The tool enables planners to quickly and easily modify the schedule to improve the sequence during the planning phase, where planners with limited knowledge of the predecessor/successor relationships can visually determine erection sequence conflicts. In addition, the Erection Visualization Tool (EVT) provides a means for communicating module status and aids decision making throughout the erection process to avoid excess construction costs and ensure on time delivery of ships.

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