DTIF specification

This index routes to the normative chapters that define the Design Token Interchange Format.

Specification structure

• Introduction – Abstract, scope, and how to read the specification.
• Terminology – Definitions for key concepts such as token documents and collections.
• Architecture and model – Document structure, encoding, and versioning foundations.
• Format and serialisation – Reserved members and aliasing behaviour.
• Token types – Value shapes and component groupings for registered types.
• Typography – Extended rules for composite typography tokens.
• Theming and overrides – Layering, conditional logic, and overrides.
• Metadata – Accessibility and semantic metadata carried by tokens.
• Extensibility – Forward-compatibility expectations and namespace registration.
• Conformance – Requirements for producers, consumers, and validators.
• Security, privacy, and related considerations – Cross-cutting operational requirements.
• Normative references – Authoritative specifications cited by DTIF.
• Change management – Compatibility expectations for evolving token documents.
• License – Licensing terms for the specification text.

Additional support material is available in the Guides and Examples sections.