almatoai · CalvinSpolwindAlmato · Jun 26, 2026 · Jun 26, 2026
diff --git a/NTO/Academy/README.md b/NTO/Academy/README.md
@@ -0,0 +1,81 @@
+# Academy
+
+NTO for the Bardioc Academy: courses and their dependencies, learner enrollment and
+progress, ratings, the catalogue and its tracks, and verifiable certificates. The
+Bardioc graph is the source of truth; Area9 is the LMS.
+
+## New entity (entities/)
+
+- **Enrollment** -- reified learner<->course state: `enrollmentStatus`, `lastVerb`,
+  `registrationId`, `progress`, xAPI Result fields, `resumeLocation`, lifecycle
+  timestamps, per-course licence window. Reified because OGIT edges carry no attributes
+  (cf. `ogit:Rating`). Canonical learner edge: `ogit.Auth:Account -has-> Enrollment`.
+
+## New verbs (verbs/)
+
+`enrolledIn` (Enrollment->Course), `resultedIn` (Enrollment->Certificate), `certifies`
+(Certificate->Course), `supersedes` (Course->Course, version/re-training). No Academy
+edge uses the generic `ogit:relates`.
+
+## New attributes (attributes/) -- 45, namespace `ogit.Academy`
+
+- **Course:** achievementId, activityId, courseCode, criteria, criteriaId, courseMode,
+  passingScore, educationalLevel, timeRequired, moveOn, launchUrl, promoted,
+  prerequisiteSummary.
+- **Certificate:** credentialId, credentialType, credentialContext, proofValue,
+  securingMechanism, proofCryptosuite, joseAlgorithm, proofVerificationMethod,
+  proofPurpose, proofCreatedAt, credentialStatus, verificationUrl.
+- **Enrollment:** enrollmentStatus, lastVerb, registrationId, progress, completion,
+  success, scoreScaled/Raw/Min/Max, sessionDuration, resumeLocation, enrolledAt,
+  startedAt, completedAt, lastActivityAt, licenseIssuedAt, licenseExpiresAt.
+- **Account:** lmsActivatedAt, lmsActiveUntil.
+
+## Reused types / verbs
+
+Types: `ogit:Course`, `ogit:Certificate`, `ogit:Catalog`, `ogit:Rating`,
+`ogit:Attachment`, `ogit.Documents:Document`, `ogit:Person`, `ogit:Organization`,
+`ogit.Auth:Account`, `ogit.ClassificationStandard:ClassificationStandardTreeBranch`
+(tracks), `ogit.HR.Recruiting:Skill` (prior knowledge), `ogit.Forum:Award` (badges).
+Verbs: `requires`, `precedes` (one direction; follows derived), `contains`, `rates`,
+`provides`, `receives`, `creates`, `has`, `classifiedUnder`.
+
+## Extensions to existing core types (additions only)
+
+These types gain allowed-edge entries (and Course/Certificate/Account a few optional
+attributes) to wire in the Academy types; see the diff for the exact lines:
+`ogit:Course`, `ogit:Certificate`, `ogit:Person`, `ogit:Catalog`, `ogit:Organization`,
+`ogit:Rating`, `ogit.Auth:Account`.
+
+## Modelling notes
+
+- **IRIs:** `ogit:id` is the internal node id (UUID). The standards' HTTP IRIs use
+  dedicated attributes: `achievementId` (OB Achievement.id), `credentialId`
+  (VC/OB credential id), `activityId` (xAPI Activity id / cmi5 grouping).
+- **Account is the canonical learner anchor:** `has -> Enrollment` and `lmsActivatedAt`/
+  `lmsActiveUntil` are on the Account only; Person only `receives -> Certificate/Award`.
+- **`promoted`** is a phase-1, course-global flag (per-catalogue promotion is phase-2).
+- **"available"** is derived (no Enrollment / NotStarted), not an enum value.
+- **Certificate signing:** the signed VC/JWS/PDF lives in an `Attachment`; the `proof*`
+  attributes are a queryable cache (embedded Data Integrity case) -- for enveloping
+  (JOSE/SD-JWT/COSE) only the Attachment is authoritative.
+
+## Standards alignment
+
+Modelled to align with **Open Badges 3.0 / W3C Verifiable Credentials 2.0** (certificates),
+**xAPI (IEEE 9274.1.1-2023) + cmi5** (learning records, aggregate state in phase 1) and
+**schema.org Course** (catalogue). The VC `credentialSubject` and `issuer` and the
+JSON-LD type strings are reconstructed at export from the graph, not stored verbatim.
+
+## Application-layer enforcement
+
+A few standard-mandatory fields cannot be enforced on the shared SGO core types
+(`ogit:Course`, `ogit:Certificate`), so the Academy service enforces them on write:
+
+| Field | OGIT slot | Rule |
+| --- | --- | --- |
+| Achievement.criteria, .description, .id | criteria / `ogit:description` / achievementId | reject Academy course without them |
+| xAPI Activity id | activityId | reject Academy course without it |
+| Credential id, validFrom | credentialId / `ogit:validFrom` | set/require at issuance |
+| issuer id | Organization `ogit:webPage` | require a resolvable IRI at issuance |
+| cmi5 registration | registrationId | require once the enrollment is past NotStarted |
+| score / progress ranges | -- | range-check (no native validator) |
diff --git a/NTO/Academy/attributes/achievementId.ttl b/NTO/Academy/attributes/achievementId.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:achievementId
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "achievementId";
+	dcterms:description "The Open Badges 3.0 Achievement.id as an HTTP IRI: the canonical, globally-unique URI of the achievement this course certifies. Distinct from the internal graph node id ogit:id (a platform UUID). Presence enforced at the application layer (see README deviation table).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/activityId.ttl b/NTO/Academy/attributes/activityId.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:activityId
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "activityId";
+	dcterms:description "The stable xAPI/cmi5 Activity IRI for the course (the object.id of an xAPI statement; also the cmi5 context.contextActivities.grouping IRI). A persistent HTTP IRI, distinct from launchUrl (dynamic) and courseCode. Presence enforced at the application layer (see README deviation table).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/completedAt.ttl b/NTO/Academy/attributes/completedAt.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:completedAt
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "completedAt";
+	dcterms:description "Timestamp when the learner completed the course. ISO 8601 date-time.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/completion.ttl b/NTO/Academy/attributes/completion.ttl
@@ -0,0 +1,16 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:completion
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "completion";
+	dcterms:description "xAPI Result.completion (whether the course content was completed). Stored as the string literal 'true' or 'false' per the OGIT fixed-value convention (not a native boolean). Distinct from enrollmentStatus -- a content-completion flag, not the lifecycle state.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+	ogit:validation-type "fixed";
+	ogit:validation-parameter "true,false";
+.
diff --git a/NTO/Academy/attributes/courseCode.ttl b/NTO/Academy/attributes/courseCode.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:courseCode
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "courseCode";
+	dcterms:description "The external course code / identifier; carries the Area9 (LMS) course identifier. Aligns with schema.org courseCode. The stable xAPI Activity IRI is ogit.Academy:activityId, not this field.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/courseMode.ttl b/NTO/Academy/attributes/courseMode.ttl
@@ -0,0 +1,16 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:courseMode
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "courseMode";
+	dcterms:description "The mode of course delivery. Aligns with schema.org courseMode (lowercase to match the schema.org / Google structured-data examples; an intentional fixed subset of the schema.org free-text field).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+	ogit:validation-type "fixed";
+	ogit:validation-parameter "online,blended,onsite";
+.
diff --git a/NTO/Academy/attributes/credentialContext.ttl b/NTO/Academy/attributes/credentialContext.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:credentialContext
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "credentialContext";
+	dcterms:description "The JSON-LD @context of the credential, stored as a serialized JSON array string preserving order and permitting inline context objects.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/credentialId.ttl b/NTO/Academy/attributes/credentialId.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:credentialId
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "credentialId";
+	dcterms:description "The W3C VC 2.0 / Open Badges 3.0 credential id (AchievementCredential.id) as an HTTP IRI. Distinct from the internal graph node id ogit:id. Presence enforced at the application layer (see README deviation table).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/credentialStatus.ttl b/NTO/Academy/attributes/credentialStatus.ttl
@@ -0,0 +1,16 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:credentialStatus
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "credentialStatus";
+	dcterms:description "Cached evaluated revocation/suspension state for fast queries. NOT the VC 2.0 credentialStatus object (a status-list descriptor with id/type/statusListCredential/statusListIndex); that descriptor lives in the signed credential blob (Attachment).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+	ogit:validation-type "fixed";
+	ogit:validation-parameter "active,revoked,suspended";
+.
diff --git a/NTO/Academy/attributes/credentialType.ttl b/NTO/Academy/attributes/credentialType.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:credentialType
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "credentialType";
+	dcterms:description "The Verifiable Credential 'type' value, stored as a serialized JSON array string preserving order (e.g. '[\"VerifiableCredential\",\"OpenBadgeCredential\"]').";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/criteria.ttl b/NTO/Academy/attributes/criteria.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:criteria
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "criteria";
+	dcterms:description "The Open Badges 3.0 Achievement.criteria.narrative: a human-readable statement of what the learner must do to earn the achievement. The optional Criteria.id IRI is stored separately in ogit.Academy:criteriaId, so the OB 3.0 Criteria object {id, narrative} round-trips losslessly. OB 3.0 requires a Criteria; because ogit:Course is a shared SGO type the slot is optional and enforced at the application layer (see README deviation table).";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/criteriaId.ttl b/NTO/Academy/attributes/criteriaId.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:criteriaId
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "criteriaId";
+	dcterms:description "The Open Badges 3.0 Achievement.criteria.id (an IRI), when the Criteria object carries one. Stored separately from the narrative (ogit.Academy:criteria) so the Criteria object round-trips losslessly.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/educationalLevel.ttl b/NTO/Academy/attributes/educationalLevel.ttl
@@ -0,0 +1,16 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:educationalLevel
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "educationalLevel";
+	dcterms:description "The difficulty / educational level of the course. Aligns with schema.org educationalLevel.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+	ogit:validation-type "fixed";
+	ogit:validation-parameter "Beginner,Intermediate,Advanced,Expert";
+.
diff --git a/NTO/Academy/attributes/enrolledAt.ttl b/NTO/Academy/attributes/enrolledAt.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:enrolledAt
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "enrolledAt";
+	dcterms:description "Timestamp when the enrollment record was created. Distinct from startedAt and licenseIssuedAt. ISO 8601 date-time.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/enrollmentStatus.ttl b/NTO/Academy/attributes/enrollmentStatus.ttl
@@ -0,0 +1,16 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:enrollmentStatus
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "enrollmentStatus";
+	dcterms:description "Lifecycle/outcome status of the learner's engagement with the course. NotStarted and InProgress are OGIT aggregations; Completed/Passed/Failed/Abandoned/Waived/Satisfied are cmi5 outcome verbs. The transient/session-level cmi5 verbs Launched, Initialized and Terminated are intentionally NOT lifecycle states (Terminated marks an AU session end, not a course outcome); when they occur they are captured in lastVerb only.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+	ogit:validation-type "fixed";
+	ogit:validation-parameter "NotStarted,InProgress,Completed,Passed,Failed,Abandoned,Waived,Satisfied";
+.
diff --git a/NTO/Academy/attributes/joseAlgorithm.ttl b/NTO/Academy/attributes/joseAlgorithm.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:joseAlgorithm
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "joseAlgorithm";
+	dcterms:description "ENVELOPING (JOSE/COSE) credentials only: the IANA JOSE/COSE algorithm identifier (the JWS/COSE 'alg' header, e.g. ES256, EdDSA). Distinct value namespace from proofCryptosuite.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/lastActivityAt.ttl b/NTO/Academy/attributes/lastActivityAt.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:lastActivityAt
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "lastActivityAt";
+	dcterms:description "Timestamp of the learner's most recent activity in the course. ISO 8601 date-time.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/lastVerb.ttl b/NTO/Academy/attributes/lastVerb.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:lastVerb
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "lastVerb";
+	dcterms:description "The xAPI/cmi5 verb IRI describing the most recent state transition (e.g. https://w3id.org/xapi/adl/verbs/completed, or the cmi5 Launched/Initialized IRIs). Stored so a conformant xAPI statement can be reconstructed; preserves verbs Area9 may emit outside the enrollmentStatus enum.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.
diff --git a/NTO/Academy/attributes/launchUrl.ttl b/NTO/Academy/attributes/launchUrl.ttl
@@ -0,0 +1,14 @@
+@prefix ogit:                   <http://www.purl.org/ogit/> .
+@prefix owl:                    <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs:                   <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix dcterms:                <http://purl.org/dc/terms/> .
+@prefix ogit.Academy:           <http://www.purl.org/ogit/Academy/> .
+
+ogit.Academy:launchUrl
+	a owl:DatatypeProperty;
+	rdfs:subPropertyOf ogit:Attribute;
+	rdfs:label "launchUrl";
+	dcterms:description "The stable course-level launch base URL / deep-link template on the LMS. The LMS appends session-specific parameters at launch time; this stored value is itself stable (it is NOT the per-session URL, and is distinct from the stable identifier ogit.Academy:activityId). Per-learner in-course resume position is Enrollment.resumeLocation.";
+	dcterms:valid "start=2026-06-25;";
+	dcterms:creator "Almato AG";
+.