Personalization Task Force Work Statement

The Personalization Task Force is a task force of the Accessible Rich Internet Applications Working Group (ARIA Working Group). It assists this Working Group with the work identified below.


The Personalization Task Force was approved on 14 July 2017 and is now active. The Task Force home page contains information about the operation and resources of the group.


The mission of the Personalization Task Force is to refine the Personalization Semantics specification, in consultation with the ARIA Working Group. The task force provides a focused forum for this work while the Working Group continues its work on ARIA development. Personalization Semantics was listed in the ARIA charter as "User Context" but was renamed as work progressed.

Scope of Work

As the nature of web technology broadens in scope and reach, and understanding of the needs of users with more types of disabilities increases through research and experience, the set of accessibility considerations for web sites becomes larger. Rather than extensively developing solutions for a wide range of users on all sites, designing sites in a way that they can be personalized to the needs of each user allows more optimal accessibility. New technologies are becoming available to provide personalized accessibility support, with assistance from semantics in web content. Personalization Semantics defines a set of semantic features that authors can use to support personalization of content. It is structured as an extension to Accessible Rich Internet Applications. The work descends in part from IndieUI: User Context but the approach in Personalization Semantics defines inline metadata in content, not user agent properties.


The task force will work within the ARIA Working Group to develop and refine Personalization Semantics. It will coordinate with other stakeholders, such as the Cognitive and Learning Disabilities Task Force, the Digital Publishing Working Group, IMS Global Learning Consortium, etc. It will prepare content for Personalization Semantics 1.0, which will be reviewed and published upon approval by the ARIA Working Group. It may archive features for consideration in a future version in order to maintain an achievable scope for the current version.

In addition to the features defined in Personalization Semantics, other work also addresses the broader topic of personalization to enhance accessibility. CSS provides many features to allow content to adapt to aspects of the user environment; RDFa and HTML Microdata provide ways to add semantics to content that can aid user adaptation; some Accessibility Guidelines can be met by enabling personalization. The task force will seek to develop a common vision for personalization approaches, coordinating with other groups as needed. The task force will engage the Accessible Platform Architectures Working Group to help harmonize this coordination with other accessibility activity.


Personalization Task Force communications and discussions are visible to the public. The task force home page details communication mechanisms in use. The task force will:


Any participant in the ARIA Working Group may participate in the Personalization Task Force. Participants should expect to dedicate 2 to 4 hours per week for Personalization Task Force work, which is considered part of the overall work commitment to the ARIA Working Group:

Participants may also join Personalization Task Force sub-groups. Sub-groups take on specific assignments for the Personalization Task Force.

If you are interested in becoming a participant of the Personalization Task Force or have any questions regarding its work, contact the task force facilitators.

@@Current Personalization Task Force participants


Staff contacts from the ARIA and APA Working Groups oversee attention to W3C Process with respect to the chartered requirements of the Working Group. The Facilitators set agenda, lead meetings, determine consensus, and are the primary liaison to the Working Group.

Patent Policy

This Task Force is part of the ARIA Working Group Charter, which operates under the W3C Patent Policy (5 February 2004 Version). W3C maintains a public list of any patent disclosures made in connection with the deliverables of the ARIA Working Group.