From b4545e4fa7a2d241f1d9ebbfe8a7de403e379c14 Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Wed, 26 Mar 2025 07:16:11 +0100
Subject: reduce intro; move/add chunks to background and design; update
 references

---
 _design.qmd | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to '_design.qmd')

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*
-- 
cgit v1.2.3

