January 2026 — A new critical analysis by GeoPhone, "S-100 INTEROPERABILITY: Fake Challenge," argues that the push for S-100 standards is built on a manufactured problem. The report contends that true data interoperability is already achieved daily in global ECDIS using the proven S-57 principle of spatial superposition.
The article asserts that S-100's complex model of "indexed selection" via formats like S-98 creates unnecessary artificial complexity. This leads to significantly higher production costs, restricts access to new data for existing S-57 ECDIS fleets, and offers no proven safety benefits over current methods.
Ultimately, the analysis suggests the practical future of maritime data will be shaped by national administrations' pragmatic policies, not by a forced and flawed top-down transition to S-100.
The full publication is available on the website.