> [!bot-text] AI-generated > This text was drafted by [[Jake]] and has not been reviewed. > [!info] Source > [Kay Iversen’s Post](https://www.linkedin.com/posts/kay-iversen-a0ba4a_digitaltwin-contextgraph-ontology-activity-7411281414731526144-hsr5?utm_source=share&utm_medium=member_ios&rcm=ACoAAAArP08BMtkDTuy0V840e_XuwGnahY9Swkc) > by <!-- IQ: =this.creator -->[[Kay Iversen|Kay Iversen]]<!-- /IQ --> > Related: <!-- IQ: =this.related -->[[ia|ia]], [[Concepts/ia strategy.md|ia strategy]]<!-- /IQ --> ## Summary A semantic digital twin needs both an ontology and a context graph. The ontology gives rules, meanings, and authority. The context graph records behavior, experience, and explanations. *(Summarized by Ghostreader)* ## Significance > [!bot-text] > A compact ontology-vs-context-graph distinction that maps neatly onto Stuart's interest in knowledge graphs and the PSKA ontology work; the two-layer framing (rules vs. behavior) is a teaching-ready concept. ## Claims & insights Claims that cite this summary (claims link here via `source`): <!-- QueryToSerialize: TABLE WITHOUT ID link(file.link, file.title) AS "Claim", confidence AS "Confidence" FROM #claim WHERE contains(file.outlinks, [[Summary - Kay Iversen's Post]]) SORT file.mtime DESC --> <!-- SerializedQuery: TABLE WITHOUT ID link(file.link, file.title) AS "Claim", confidence AS "Confidence" FROM #claim WHERE contains(file.outlinks, [[Summary - Kay Iversen's Post]]) SORT file.mtime DESC --> | Claim | Confidence | | ----- | ---------- | <!-- SerializedQuery END --> ## Concepts touched ```dataview LIST WITHOUT ID link(file.link, file.title) FROM #concept WHERE contains(this.file.outlinks, file.link) SORT file.mtime DESC ```