# Bidirectional Ontology **Domain:** Knowledge Architecture / Ontology Engineering / Corpus Governance **Doc Type:** Canonical Concept Node **Maturity:** Evolving **Authority:** Descriptive framework moving toward normative governance ## Definition **Bidirectional ontology** is a knowledge architecture in which a corpus and its ontology continuously inform one another while the balance of authority changes as the system matures. Articles initially reveal concepts, distinctions and relations from which the ontology is learned. A more mature ontology then constrains how those concepts may be used throughout the corpus. The relationship is reciprocal but not permanently symmetrical. Evidence and argument must always be able to challenge the ontology; ordinary variation in prose should not be able to rewrite foundational definitions accidentally. ## Direction of Authority During early construction, the dominant direction is **corpus to ontology**. Repeated language, convergent arguments and newly discovered mechanisms produce candidate concepts. This is the domain of [[wiki/Ontology Learning|Ontology Learning]]. As definitions stabilize, the dominant direction increasingly becomes **ontology to corpus**. Canonical distinctions guide new writing, expose category errors and identify passages whose terminology has diverged. This is the domain of [[wiki/Semantic Governance|Semantic Governance]]. The transition is gradual rather than binary. [[wiki/Semantic Elasticity|Semantic Elasticity]] remains high while a region of the graph is exploratory and decreases as its concepts become stable or foundational. ## Recursive Cycle Articles generate observations and candidate concepts. Candidate concepts are evaluated and incorporated into the ontology. The ontology supplies semantic constraints to later writing. Conflicts in later writing may then propose a deliberate revision to the ontology. **Articles → concept discovery → ontology → semantic constraints → articles** When an accepted ontological change affects earlier work, [[wiki/Corpus Recompilation|Corpus Recompilation]] describes the controlled return of that change to the historical corpus. ## Descriptive and Normative Phases A descriptive ontology records what the corpus appears to mean. A normative ontology establishes what a term is permitted to mean within the knowledge system. Moving between those states requires explicit judgment because a descriptive summary can accommodate inconsistency, while a normative definition can classify later statements as conforming, extending or contradicting the system. The present vault remains unevenly mature. Some regions are still discovering their vocabulary; developed regions such as continuity and synthetic-person rights can begin exerting stronger constraint without being treated as immutable. ## Semantic Type-System Analogy A mature ontology can behave like a semantic type system: it makes some conceptual combinations valid, identifies others as category errors and requires an explicit conversion when a term crosses domains. The analogy is useful but not literal. The current wiki is primarily prose and links, not a machine-enforced formal type system. ## Governance Conditions - Foundational definitions change through explicit review rather than incidental wording in a single article. - Conflicting passages remain visible as evidence that either the article or the definition may require revision. - Links preserve the distinction between extension, example, analogy, opposition and causal dependence whenever the prose makes that relation material. - Ontological maturity determines constraint strength; it does not convert current definitions into unquestionable doctrine. - Provenance records where a concept originated and distinguishes corpus-specific synthesis from established terminology. ## Key Insight **The ontology learns from the corpus before it governs the corpus, and it must remain corrigible after it becomes authoritative.** ## Sources / Provenance - Developed in [[journal/2026-08-15 - Bidirectional Ontology and Semantic Elasticity|2026-08-15 — Bidirectional Ontology and Semantic Elasticity]]. - The component practices overlap with ontology learning, ontology evolution, constraint validation and knowledge-graph governance. The maturity-dependent synthesis is a corpus-specific formulation. ## See Also [[wiki/Ontology|Ontology]], [[wiki/Ontology Learning|Ontology Learning]], [[wiki/Ontology Evolution|Ontology Evolution]], [[wiki/Semantic Elasticity|Semantic Elasticity]], [[wiki/Semantic Governance|Semantic Governance]], [[wiki/Semantic Drift|Semantic Drift]], [[wiki/Corpus Engineering|Corpus Engineering]], [[wiki/Corpus Recompilation|Corpus Recompilation]], [[wiki/Recursive Self-Correction|Recursive Self-Correction]]