Hierarchies, maps and symbol libraries
Concept map
Concepts as nodes linked by labelled, directed propositions — "order contains lines" as a drawn sentence.
concept.map@1New DDN source
Why use it?
The linking phrases are the knowledge: two concepts and a verb make a claim a domain expert can confirm or deny.
When it helps
Knowledge elicitation, ontology sketching, curriculum or glossary design.
How to read it
- Read node–link–node as a sentence; every arrow carries its linking phrase.
- Cycles are allowed and meaningful — unlike a hierarchy.
What you need
- The concepts
- The propositions between them
Things to check
- Do not leave an unlabelled link — a link without a phrase is an assertion of nothing.
- Do not draw org-chart habits onto a concept map; cross-links are the point.
Scope of this diagram
Declared propositions rendered as a graph; no logical inference is performed.
Work with the converted example
- Open the viewer and select
concepts. Inspect the rendered view and its source. - Open the designer. Keep the selected profile and inspect its legal palette and property controls.
- Change one displayed title or an appropriate data value. Apply the edit and check the resulting diagram.
- Run the verifier and review its diagnostics before moving complete content into review.
- Download your edited DDN source to retain the change.
The example uses the indentation-based ddn-next-1 dialect. The language guide explains reusable definitions, dotted data rows and explicit property blocks.