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diff --git a/_design.qmd b/_design.qmd index ee03381..2ff9a7a 100644 --- a/_design.qmd +++ b/_design.qmd @@ -2,4 +2,23 @@ ## XMP, RDFa and RDF +RDF is an abstract data model for knowledge graphs, +usable for domain-specific annotations: +Terminology for a domain is established by referencing a shared ontology, +and terms are composed as sets of subject-predicate-object triples. +RDF includes one language, Turtle, strives to be human readable, +and languages for embedding triples into other data structures, +notably XMP for PDF files and RDFa for HTML. + +RDF is an abstract data model for knowledge graphs. +Multiple RDF languages exist, +each covering all or subsets of the RDF model, +including human readability optimized Turtle, +RDFa for HTML embedding +and XMP for PDF embedding. +Each RDF language have different constraints, +e.g. the XMP language for storing RDF in media files +can express express one RDF graph in each XMP object +[@Adobe2012, p. 9]. + *TODO* |