Legal notice
The standards this site is about and who publishes them, trademarks, the software the site is built with and the licences of that software, and what the site stores about its visitors. Last changed on 2026-10-10.
Standards and their publisher
XFS (CEN/XFS) and XFS4IoT are specifications developed by the CEN/XFS Workshop and published by CEN, the European Committee for Standardization, as CEN Workshop Agreements (CWA).
The editions covered
The reader covers the editions below. The CWA numbers and dates are read from the front page of each edition's documents; the XFS4IoT releases come from the release notes in the Workshop's repository.
| Edition | Document | Date or status |
|---|---|---|
| XFS 2.00 | CWA 13449 | December 1998 |
| XFS 3.00 | CWA 14050 | November 2000 |
| XFS 3.10 | CWA 15748 | July 2008 |
| XFS 3.20 | CWA 16374 | December 2011 |
| XFS 3.30 | CWA 16926 | August 2015 |
| XFS 3.40 | CWA 16926 | February 2020 |
| XFS 3.50 | CWA 16926 | December 2022 |
| XFS4IoT 2021-01 | CWA 17852 | Released |
| XFS4IoT 2023-02 | CWA 17852 | Released |
| XFS4IoT 2024-03 | CWA 17852 | Released |
| XFS4IoT 2026-04 | CWA 17852 | Preview (June 28, 2026) |
A CWA keeps its number when it is revised, so XFS 3.30, 3.40 and 3.50 are all CWA 16926 and the date tells them apart. The interim releases 3.02 and 3.03 revised single parts and are not listed as editions. XFS4IoT is published as CWA 17852; the document of release 2021-01 carries the designation CWA 17852:2022 on its first page. Each XFS4IoT release appears as a preview first and is declared released later.
Copyright
The specification documents are copyright CEN. All rights of exploitation in any form and by any means are reserved worldwide for CEN national members.
The operator of this site is not affiliated with, sponsored by or endorsed by CEN or the CEN/XFS Workshop. Specification names and excerpts appear here to identify the standards and to document interoperability with them.
Where to obtain the documents
- CEN publishes the XFS CWAs in its CWA download area.
- The national standardisation bodies that are members of CEN distribute CEN publications in their countries; see cencenelec.eu.
- The XFS4IoT specification, its JSON schemas and its release notes are in the Workshop's GitHub organisation, github.com/XFS4IoT.
Trademarks
The following names are trademarks or registered trademarks of their respective owners: CEN and XFS4IoT; Microsoft, Windows and .NET (Microsoft Corporation); Google Cloud, Cloud Run and Firestore (Google LLC); Postmark (ActiveCampaign, LLC); GitHub (GitHub, Inc.).
Names of device manufacturers and software companies that appear in the specification documents and in device data, such as NCR, Diebold Nixdorf, Hyosung and KAL, are trademarks of their owners as well.
These names are used only to identify products and to describe interoperability with them. Their use implies no affiliation with or endorsement by their owners.
Third-party software
The pages of this site are served by a Java application. Its libraries and its runtime are listed below.
Each list is generated from the part's lock file by a script in the source repository (tools/legal/generate-licenses.py) and is regenerated when a dependency changes; the date of each list is shown with it. Each row gives the component's name, version and licence. Where a licence asks for its text and the copyright notice to accompany the software, the copyright lines found in the component appear with its row and the licence text is reproduced under "Licence texts". Rows marked "manual" were completed by hand because the component's own metadata names no licence; each says where the licence was read.
The hub's Java libraries
Libraries in the server application that serves the hub (runtime scope of xfs-api/pom.xml). 167 components, list generated on 2026-10-10.
Resolved from mvn dependency:list -DincludeScope=runtime; licences from the POMs in the local Maven repository (parents included).
These libraries run on the operator's server; they are not distributed to users.
Show the 167 components
Licence texts
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Licence terms for this software
The pages of this site and the software that serves them are proprietary to the operator, apart from the third-party components listed under "Third-party software", which are licensed under their own licences. The specification names, numbers and excerpts quoted on the pages remain CEN's (see "Standards and their publisher").
Data processing
This section says what this site stores about its visitors, why, where, for how long and who can see it. It describes what the software does.
What is stored, and why
Correction reports. A report sent from the correction form stores the page it concerns, the text of the report, the contact address if one was given, the sender's network address and the time. The report is mailed to the addresses the operator chose, through Postmark (ActiveCampaign, LLC), which processes the message to deliver it and keeps a record of it under its own terms; see the ActiveCampaign privacy policy. The sender's network address is also counted in memory to limit repeated reports.
Server logs. The hosting platform records each request: the client's network address, the time, the method and path, the status, the size and duration of the response and the browser's user agent. The application's own log lines record errors and dropped correction reports with the sender's network address. Logs serve operation, error analysis and abuse prevention.
Nothing else is stored. The site has no accounts, sets no cookies, uses no browser storage, loads no fonts or scripts from other sites and runs no analytics or advertising.
Where it is stored
Correction reports are stored in Google Cloud Firestore in the region europe-west3 (Frankfurt, Germany). The site runs on Google Cloud Run in the region us-central1 (Iowa, United States), so requests are processed there. Google acts as the operator's hosting provider.
How long
- Correction reports are kept until the operator deletes them.
- Logs are kept for the retention period of the project's log bucket. The platform's default for the bucket that holds request and application logs is 30 days (Google Cloud Logging, quotas and limits).
- The counters for repeated reports are held in memory and are lost when the service restarts.
Who can see it
The operator's administrators. Google (hosting) and Postmark (mail) process data on the operator's behalf.
Lawful basis
Under the General Data Protection Regulation (Regulation (EU) 2016/679), correction reports and server logs are processed on the basis of the operator's legitimate interest in keeping the site's content correct, running it securely and preventing abuse (Article 6(1)(f)).
Your rights
You have the right to access the data held about you, to have it corrected or deleted, to restrict its processing and to object to it. To use these rights, write to the operator. You also have the right to lodge a complaint with a data protection supervisory authority, in particular in the country where you live or work.
Security reporting
If you believe you have found a security vulnerability in this site, write to the operator. Describe what you found, how to reproduce it and which address or version is affected.
Each report is answered, and the reporter is told when the issue is fixed. Please give the operator reasonable time to fix an issue before you disclose it, and do not access, change or delete data that is not yours, or degrade the service for others, while you test.
There is no bug bounty programme.
Warranty and liability
The site and its content are provided as they are, without warranty of any kind, to the extent the applicable law allows. The operator is not liable for indirect or consequential damage, such as lost profit or lost data, to the extent the applicable law allows.
The specification content is read from the CEN documents and may be incomplete, out of date or wrong where the reading went wrong. The CEN documents are authoritative; where this site and a document differ, the document is right.
Nothing on this page is legal advice.
Mandatory statutory rights, including the rights of consumers and liability that the law does not allow to be excluded, are not affected.
Changes
This page was last changed on 2026-10-10. Each change to its text is listed here, newest first.
- 2026-10-10: First version of this page. The notice about the standards and their publisher moved here from the page footer and was extended with the operator, trademarks, third-party software, licence terms, data processing, security reporting and warranty.