CAP Implementation Workshop 2025

[Konqi]

Last week I attended the 2025 edition of the CAP Implementation Workshop in Rome, Italy, a three day conference around the use of the CAP protocol for emergency warnings.

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This is a companion discussion topic for the original entry at https://www.volkerkrause.eu/2025/11/01/cap-implementation-workshop-2025.html

[rokejulianlockhart]

@Konqi

The alerting authorities on the other hand have a very different view on this, being legally prohibited from alerting outside of their corresponding jurisdiction. This is also part of the reason for excessively detailed area geometries and additional technical complexity like device-based geofencing for more precise cell broadcast targeting, ie. things I’d even consider counter-productive in many cases.

Although the authorities may not be permitted to alert outside their regions, users subscribing to alerts that geographically cross into theirs shouldn’t be problematic; I utilise the Pacific Disaster Center’s Disaster Alert software, which permits me to do so.

@Konqi

The other aspect that still needs a proper solution (which is in the works) is the ETL versioning issue, that I at least only realized to the full extent while discussing this at the conference: There’s a draft version with completely different meanings of the event codes and which due to a misunderstanding appears to have the higher version number.

To make matters worse, the key for those values is the same (OET:v1.0), so they aren’t distinguishable at all, which practically means we can’t distinguish whether a warning is about a dust storm or a drug supply issue, nor whether it’s about the fall of snow or space debris, for example. That currently renders all existing ETL codes practically useless, unfortunately.

How shall that be remediated? With a higher-versioned release?