Challenges in transferring data from S-57 to S-101 

After nearly 30 years of using data under Standard S-57 in the maritime sector (since May 1992), the time has come for a new, more flexible standard in line with the continuing development of the Faculty of Science and Technology. science and technology, in order to address the needs of today's maritime and non-maritime operations, complying with international geospatial standards, and integrating with geographic information systems (GIS). Although Standard S-101 “Standard for Product Specification for Electronic Chart Data” is a big step forward, it does not make much of a difference from Standard S-57 while retaining many attributes and enhancement factors. This makes data sets useful in spatial data infrastructure systems, including geographic information systems (GIS) and e-Navigation.

Manufacturers of Electronic Chart and Information Display Systems (ECDIS) will need to comply with the new Standard, and the National Hydrographic Office will also need to manufacture ENC products that comply with that standard. There are many technical issues that hydrographic agencies need to solve in the beginning of the transition from S-57 to S-101 products. For national hydrographic agencies, this means that in addition to effectively creating new products simultaneously with old products, they must also understand how to code new specifications, as well as how to manage, analyze, manufacture and publish these products.

However, one of the challenges that national hydrographic authorities need to face is whether they need to maintain more than one database to support both standards simultaneously, the idea of ​​doubling The production and maintenance of two separate product portfolios can be a deterrent to the decision to proceed with new product production. The S-101 production system should be able to minimize and provide ways to keep these additional requirements as easy and automated as possible. In the near future, it will be inevitable that national hydrographic authorities will have to simultaneously maintain data for both standards (S57 and S-101), as well as begin training staff according to the latest updates. update of Standard S-101, which means double the workload.

When the hydrographic office decides to begin capturing features in the S-101 format or features new to that format, the necessary data and information can be gathered together in one space. work temporarily on what is required to perform specific tasks. On the basis of its needs, the hydrographic agency will need to determine the system structure, the number of databases and the production process. In many cases, attributes between S-57 and S-101 can be automatically determined. However, it is possible that new objects or encodings exist in S-101 that do not exist in S-57, intermediate properties may be removed.

Having two separate production systems will increase the production workload by at least 2 times and will be a challenge for any hydrographic office. Therefore, a single production system with the ability to produce dual data from the same dataset would be the approach recommended by the IHO. While a system would effectively mitigate the increase in workload, two ENC product catalogs must still be maintained, and that source data will flow to each catalog differently. Because Standard S-101 is a flexible standard, national hydrographic authorities will have to be ready to adopt changes to updated versions as soon as they are approved.

With the introduction of Standard S-100 “Global Hydrographic Data Modeling Standard” is of great significance to GIS System because all product specifications must comply with ISO standards. 19100 and TC211, making these data usable not only for maritime safety but also for geospatial analysis (GIS). With these new changes, the S-101 data really opens a new door on the future of electronic navigation as well as the foundation for marine spatial databases.