| Summary: | Traditional CHS products are renowned for their quality, especially in terms of accuracy and reliability. So it was natural for CHS Central and Arctic Region to want to maintain this level of quality as they moved into full-scale production of S57 ENC products. In traditional CHS products, quality control is done by visually checking the final graphic product. This approach does not work for S57 products for two reasons. One, the amount of data in an S57 product makes it virtually impossible to check visually. Two, much of the data is not displayed on the graphic, it is held in an associated data file. This paper describes a series of semi-automated processes and procedures (working name QC Suite), developed to help hydrographers check the values of attributes in an S57 ENC product. QC Suite provides interfaces and tools to review attributes and attribute values in S57 ENCs. Using these tools the checkers ensure that the quality of our product is maintained and the time for production is kept to a minimum.
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