Notation

This specification uses the terminology and naming conventions that are shared across the rest of the specification.

The production notation for the abstract grammar is defined in spec/grammar.md.

Conformance Language

The words MUST, MUST NOT, SHOULD, and MAY are used to express normative requirements when appropriate.

Naming Conventions

Defined terms use the terminology in this specification exactly. In particular, the following terms are normative and stable.

Schema and artifact terms:

• Artifact
• SchemaArtifact
• Template
• Field
• PresentationComponent

Embedding terms:

• EmbeddedArtifact
• EmbeddedField
• EmbeddedTemplate
• EmbeddedPresentationComponent
• EmbeddedArtifactKey

Instance terms:

• TemplateInstance
• InstanceValue
• FieldValue
• NestedTemplateInstance

Typing terms:

• FieldSpec

Value Notation

Value denotes an instance-level data value in the grammar.

Each Value family carries its content directly: a LexicalForm, an optional LanguageTag, an explicit datatype IRI (where one is configurable), or a boolean payload, depending on the family. There is no separate RDF-Literal layer in the abstract grammar; an RDF projection is defined separately in rdf-projection.md.

The normative structure and semantics of values are defined in the Values section of grammar.md.