From 44f8621ebaa2033e9b239f1d2a6c1b14f81ada7b Mon Sep 17 00:00:00 2001
From: kempersc <sckemper@mailfence.com>
Date: Wed, 14 Jan 2026 22:21:12 +0100
Subject: [PATCH] refactor: consolidate valid_from and valid_to into
 temporal_extent per Rule 53 in ArticlesOfAssociation,
 AuxiliaryDigitalPlatform, and AuxiliaryPlace schemas

---
 .../schemas/20251121/linkml/manifest.json     |  2 +-
 schemas/20251121/linkml/manifest.json         |  2 +-
 .../classes/ArticlesOfAssociation.yaml        |  3 +--
 .../classes/AuxiliaryDigitalPlatform.yaml     |  4 +---
 .../modules/classes/AuxiliaryPlace.yaml       |  4 +---
 .../modules/classes/AvailabilityStatus.yaml   |  3 +--
 .../modules/classes/ExhibitionCatalog.yaml    | 22 ++++++++++++++++---
 7 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/frontend/public/schemas/20251121/linkml/manifest.json b/frontend/public/schemas/20251121/linkml/manifest.json
index fc916f8319..3db4009d63 100644
--- a/frontend/public/schemas/20251121/linkml/manifest.json
+++ b/frontend/public/schemas/20251121/linkml/manifest.json
@@ -1,5 +1,5 @@
 {
-  "generated": "2026-01-14T19:52:31.153Z",
+  "generated": "2026-01-14T21:20:44.815Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 3026,
   "categoryCounts": {
diff --git a/schemas/20251121/linkml/manifest.json b/schemas/20251121/linkml/manifest.json
index 3db4009d63..873f7e8928 100644
--- a/schemas/20251121/linkml/manifest.json
+++ b/schemas/20251121/linkml/manifest.json
@@ -1,5 +1,5 @@
 {
-  "generated": "2026-01-14T21:20:44.815Z",
+  "generated": "2026-01-14T21:21:12.852Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 3026,
   "categoryCounts": {
diff --git a/schemas/20251121/linkml/modules/classes/ArticlesOfAssociation.yaml b/schemas/20251121/linkml/modules/classes/ArticlesOfAssociation.yaml
index c4fd21aa23..f26f60f320 100644
--- a/schemas/20251121/linkml/modules/classes/ArticlesOfAssociation.yaml
+++ b/schemas/20251121/linkml/modules/classes/ArticlesOfAssociation.yaml
@@ -150,8 +150,7 @@ classes:
     - superseded_by
     - supersede
     - template_specificity
-    - valid_from
-    - valid_to
+    - temporal_extent  # was: valid_from + valid_to - migrated per Rule 53
     - version_number
     - was_derived_from
     - was_generated_by
diff --git a/schemas/20251121/linkml/modules/classes/AuxiliaryDigitalPlatform.yaml b/schemas/20251121/linkml/modules/classes/AuxiliaryDigitalPlatform.yaml
index 3081b0bcb0..2b1979c998 100644
--- a/schemas/20251121/linkml/modules/classes/AuxiliaryDigitalPlatform.yaml
+++ b/schemas/20251121/linkml/modules/classes/AuxiliaryDigitalPlatform.yaml
@@ -135,9 +135,7 @@ classes:
     - specificity_annotation
     - technology_stack
     - template_specificity
-    - temporal_extent
-    - valid_from
-    - valid_to
+    - temporal_extent  # consolidated: absorbs valid_from + valid_to per Rule 53
     - was_derived_from
     - was_generated_by
     slot_usage:
diff --git a/schemas/20251121/linkml/modules/classes/AuxiliaryPlace.yaml b/schemas/20251121/linkml/modules/classes/AuxiliaryPlace.yaml
index 1ad95ae2b7..937be7e894 100644
--- a/schemas/20251121/linkml/modules/classes/AuxiliaryPlace.yaml
+++ b/schemas/20251121/linkml/modules/classes/AuxiliaryPlace.yaml
@@ -138,9 +138,7 @@ classes:
     - street_address
     - subregion
     - template_specificity
-    - temporal_extent
-    - valid_from
-    - valid_to
+    - temporal_extent  # consolidated: absorbs valid_from + valid_to per Rule 53
     - was_derived_from
     - was_generated_by
     slot_usage:
diff --git a/schemas/20251121/linkml/modules/classes/AvailabilityStatus.yaml b/schemas/20251121/linkml/modules/classes/AvailabilityStatus.yaml
index 7ade8db731..849090735a 100644
--- a/schemas/20251121/linkml/modules/classes/AvailabilityStatus.yaml
+++ b/schemas/20251121/linkml/modules/classes/AvailabilityStatus.yaml
@@ -54,8 +54,7 @@ classes:
     slots:
     - has_or_had_label
     - has_or_had_description
-    - valid_from
-    - valid_to
+    - temporal_extent  # was: valid_from + valid_to - migrated per Rule 53
     slot_usage:
       has_or_had_label:
         range: string
diff --git a/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml b/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml
index 9937e3f509..de01e1bd6b 100644
--- a/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml
+++ b/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml
@@ -332,11 +332,27 @@ classes:
         pattern: ^Q[0-9]+$
         examples:
         - value: Q116123456
-      worldcat_id:
+      # DEPRECATED: worldcat_id - migrated to has_or_had_identifier with WorldCatIdentifier (2026-01-14, Rule 53)
+      # worldcat_id:
+      #   required: false
+      #   range: string
+      #   examples:
+      #   - value: '1370123456'
+      has_or_had_identifier:
+        description: >-
+          WorldCat identifier for library catalog lookup.
+          MIGRATED from worldcat_id slot (2026-01-14) per Rule 53.
+          
+          Uses WorldCatIdentifier class for structured identifier with provenance.
         required: false
-        range: string
+        range: WorldCatIdentifier
+        multivalued: true
+        inlined: true
         examples:
-        - value: '1370123456'
+        - value: |
+            identifier_value: "1370123456"
+            identifier_source: "OCLC WorldCat"
+          description: WorldCat identifier for library catalog lookup
       library_catalog_url:
         required: false
         range: uri