OASIS Classification of Everyday Living (COEL) TC

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Providing a privacy-by-design framework for behavioral data collection and processing


The Technical Committee was closed by TC Administration on 07 June 2023 and is no longer active. Archives of its work remain publicly accessible and are linked from this page. OASIS appreciates the efforts of all those who participated in this TC.

Table of Contents


24 January 2019 - Classification of Everyday Living Version 1.0 has been approved by the membership as an OASIS Standard. See the announcement at https://www.oasis-open.org/news/announcements/classification-of-everyday-living-v1-0-coel-becomes-an-oasis-standard.

26 June 2018 - Classification of Everyday Living Version 1.0 Committee Specification 02 has been approved. See the announcement at https://www.oasis-open.org/news/announcements/classification-of-everyday-living-v1-0-from-the-coel-tc-approved-as-a-committee-0.

1 March 2018 - The OASIS Classification of Everyday Living (COEL) TC has been approved as an OASIS Committee Specification. This Committee Specification is an OASIS deliverable, completed and approved by the TC and fully ready for testing and implementation.

Participation in the OASIS COEL TC is open to all interested parties. Contact join@oasis-open.org for more information.


The OASIS COEL specification provides a privacy-by-design framework for the collection and processing of behavioural data. It is uniquely suited to the transparent use of dynamic data for personalised digital services, IoT applications where devices are collecting information about identifiable individuals and the coding of behavioural data in identity solutions. The specification pseudonymises personal data at source and maintains a separation of different data types with clearly defined roles & responsibilities for all actors. All behavioural data are defined as event-based packets. Every packet is connected directly to an individual and can contain a summary of the consent they provided for the processing of the data. A combination of a taxonomy of all human behaviours (the COEL model) and the event-based protocol provide a universal template for data portability. Simple interface specifications enforce the separation of roles and provide system-level interoperability.

For more information on the OASIS COEL TC, see the TC Charter.


No subcommittees have been formed for this TC.

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TC Tools and Approved Publications

Technical Work Produced by the Committee

The Classification of Everyday Living Technical Committee has recently published a Committee Specification:

Expository Work Produced by the Committee

There are no approved expository work products for this TC yet.

External Resources

Although not produced by the OASIS COEL TC, the following information offers useful insights into its work:

Visualising the COEL Model

Langford, J. & Reed, M. 2013. Data to Life. 1st ed. Great Britain: Coelition.

Mailing Lists and Comments

coel: the discussion list used by TC members to conduct Committee work. TC membership is required to post, and TC members are automatically subscribed. The public may view the OASIS list archives, also mirrored by MarkLogic at MarkMail.org.

coel-comment: a public mailing list for providing feedback on the technical work of the OASIS COEL TC. Send a comment or view the OASIS comment list archives, also mirrored by MarkLogic at MarkMail.org.

Press Coverage and Commentary

IEEE Xplore: Promoting health for chronic conditions: A novel approach that integrates clinical and personal decision support (June 2016)

Meeco announce adoption of COEL (6 September 2016)

IoT Council article (11 November 2016)

University of Exeter Behavioural Attributes for Identity report (9 June 2017)

The Rise of The Attribute Economy 2.0 (17 February 2017)

Data management and use: Governance in the 21st century, Royal Society (2017)

Coelition press release (1 March 2018)

COEL-TC statement for W3C Data Privacy Controls and Vocabularies workshop (17 April 2018)

Blockchain, Identity, and CSR in 2018 (4 June 2018)

The potential for COEL in automated buildings (August 2018)

Additional Information

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