This paper presents the extension of the 3-D model to the production problem of estimating construction completion. This has several benefits:

1 Timely billing for work completed.

2 Daily updates on construction completion/progress.

3 Improved material and manpower utilization from an accurate tracking of production schedule.

Connecting the digital 3-D model to the as build structure requires introducing bar code labels and Radio Frequency Identification Device (RFID) tags and readers. The paper discusses many aspects of RFID tag selection and applications. The paper closes with a discussion of how the bar codes and RFID tags can be used to improve the shipbuilding progress payment. By this improvement, the modest cost of the tags and readers can be easily recovered.

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