downgrade Dataset.publisher from mandatory to recommended and update examples

jsonschema/definitions/Dataset.json

@@ -718,12 +718,21 @@
     "publisher": {
       "title": "publisher",
       "description": "Organization responsible for publishing and making the dataset available",
-      "$ref": "/dcat-us/3.0.0/definitions/organization",
+      "anyOf": [
+        {
+          "type": "null",
+          "title": "Null allowed when not required"
+        },
+        {
+          "$ref": "/dcat-us/3.0.0/definitions/organization",
+          "description": "inline description of Organization"
+        }
+      ],
       "_oldDocs": {
         "uri": "dcterms:publisher",
         "range": "foaf:Agent"
       },
-      "requirementLevel": "Mandatory"
+      "requirementLevel": "Recommended"
     },
     "relation": {
       "title": "related resource",
@@ -980,13 +989,7 @@
       "requirementLevel": "Optional"
     }
   },
-  "required": [
-    "description",
-    "publisher",
-    "title",
-    "contactPoint",
-    "identifier"
-  ],
+  "required": ["description", "title", "contactPoint", "identifier"],
   "_oldDocs": {
     "rdfClass": "dcat:Dataset",
     "rationale": "The update of dcat:Dataset is crucial as it aligns the DCAT profile with international standards, offering a standardized and widely recognized way to describe datasets. This alignment enhances data interoperability and discoverability, enabling data publishers to provide structured metadata, improving data sharing, and facilitating seamless integration for users and applications.",

jsonschema/docs/dataset.md

@@ -138,7 +138,7 @@ A collection of data published or curated by one provider
 | [language](#language)                                   | More than one type                                                                               | Optional          | ISO 639-1 language code values used in the dataset text or metadata, such as en or es, full list can be seen at https://id.loc.gov/vocabulary/iso639-1.html                                                                                                |
 | [modified](#modified)                                   | More than one type                                                                               | Recommended       | Most recent date when the dataset's actual data changed, not just metadata                                                                                                                                                                                 |
 | [provenance](#provenance)                               | null or array of string                                                                          | Optional          | List of statements about the lineage of a Dataset, including any changes in its ownership or custody since its creation that may be significant for its authenticity, integrity, or interpretation                                                         |
-| [publisher](#publisher)                                 | object                                                                                           | Mandatory         | Organization responsible for publishing and making the dataset available                                                                                                                                                                                   |
+| [publisher](#publisher)                                 | More than one type                                                                               | Recommended       | Organization responsible for publishing and making the dataset available                                                                                                                                                                                   |
 | [relation](#relation)                                   | null or array of string                                                                          | Optional          | List of links to related resources when the relationship is not otherwise specified                                                                                                                                                                        |
 | [replaces](#replaces)                                   | null or array of [Dataset](./dataset.md#root) classes                                            | Optional          | List of Datasets replaced by this Dataset                                                                                                                                                                                                                  |
 | [rights](#rights)                                       | null or array of string                                                                          | Recommended       | Rights statements not already covered by license or accessRights, such as copyright or policy restrictions                                                                                                                                                 |
@@ -1323,15 +1323,32 @@ Full text of the provenance statement
 
 ## <a name="publisher"></a>`Dataset > publisher` [#](#publisher)
 
-**Requirement:** Mandatory
+**Requirement:** Recommended
 
 Organization responsible for publishing and making the dataset available
 
+| **Type**                  | `combining`      |
+| ------------------------- | ---------------- |
+| **Additional properties** | Any type allowed |
+
+| Any of                                                |
+| ----------------------------------------------------- |
+| [Null allowed when not required](#publisher_anyOf_i0) |
+| [Organization](#publisher_anyOf_i1)                   |
+
+### <a name="publisher_anyOf_i0"></a>`Dataset > publisher > anyOf > Null allowed when not required` [#](#publisher_anyOf_i0)
+
+| **Type** | `null` |
+| -------- | ------ |
+
+### <a name="publisher_anyOf_i1"></a>`Dataset > publisher > anyOf > Organization` [#](#publisher_anyOf_i1)
+
+inline description of Organization
+
 | **Type**                  | `object`                                 |
 | ------------------------- | ---------------------------------------- |
-| **Required**              | Yes                                      |
 | **Additional properties** | Any type allowed                         |
-| **Defined in**            | [Organization](./agents.md#organization) |
+| **Same definition as**    | [Organization](./agents.md#organization) |
 
 ## <a name="relation"></a>`Dataset > relation` [#](#relation)
 

jsonschema/examples/Catalog/bad/invalid_homepage_type.json

@@ -11,9 +11,7 @@
         "fn": "Support",
         "hasEmail": "mailto:support@example.gov"
       },
-      "publisher": {
-        "name": "Example Org"
-      }
+      "identifier": "https://example.gov/datasets/catalog-example-001"
     }
   ],
   "homepage": "https://example.gov/invalid-homepage-format"

jsonschema/examples/Catalog/bad/invalid_issued_format.json

@@ -11,9 +11,7 @@
         "fn": "Support",
         "hasEmail": "mailto:support@example.gov"
       },
-      "publisher": {
-        "name": "Example Org"
-      }
+      "identifier": "https://example.gov/datasets/catalog-example-001"
     }
   ],
   "issued": "January 15, 2020"

jsonschema/examples/Catalog/bad/invalid_language_format.json

@@ -11,9 +11,7 @@
         "fn": "Support",
         "hasEmail": "mailto:support@example.gov"
       },
-      "publisher": {
-        "name": "Example Org"
-      }
+      "identifier": "https://example.gov/datasets/catalog-example-001"
     }
   ],
   "language": ["english", "spanish"]

jsonschema/examples/Catalog/good/minimal_example.json

@@ -9,9 +9,6 @@
         "fn": "Data Support",
         "hasEmail": "mailto:support@example.gov"
       },
-      "publisher": {
-        "name": "Example Organization"
-      },
       "identifier": "https://example.gov/datasets/catalog-example-001"
     }
   ]

jsonschema/examples/Dataset/bad/bad-accrual-periodicity.json

@@ -2,6 +2,10 @@
   "@type": "Dataset",
   "title": "Example Dataset",
   "description": "A minimal dataset example with invalid periodicity",
-  "publisher": "https://example.gov/org/sample-agency",
+  "contactPoint": {
+    "fn": "Data Support",
+    "hasEmail": "mailto:support@example.gov"
+  },
+  "identifier": "https://example.gov/datasets/catalog-example-001",
   "accrualPeriodicity": "every-other-tuesday"
 }

jsonschema/examples/Dataset/good/good-accrual-periodicity.json

@@ -2,9 +2,6 @@
   "@type": "Dataset",
   "title": "Example Dataset",
   "description": "A minimal dataset example with a valid periodicity",
-  "publisher": {
-    "name": "The Minimal Organization"
-  },
   "accrualPeriodicity": "quarterly",
   "contactPoint": [
     {

jsonschema/examples/Dataset/good/minimal_example.json

@@ -1,9 +1,6 @@
 {
   "title": "Example Dataset",
   "description": "A dataset for testing purposes.",
-  "publisher": {
-    "name": "Example Agency"
-  },
   "contactPoint": {
     "fn": "Data Support",
     "hasEmail": "mailto:data@example.gov"

jsonschema/examples/Dataset/good/null_example.json

@@ -18,7 +18,7 @@
   "hasPart": null,
   "hasQualityMeasurement": null,
   "hasVersion": null,
-  "identifier": null,
+  "identifier": "",
   "image": null,
   "inSeries": null,
   "isReferencedBy": null,
@@ -33,9 +33,7 @@
   "page": null,
   "previousVersion": null,
   "provenance": null,
-  "publisher": {
-    "name": ""
-  },
+  "publisher": null,
   "purpose": null,
   "qualifiedAttribution": null,
   "qualifiedRelation": null,

jsonschema/examples/Dataset/good/theme_full_example.json

@@ -6,9 +6,6 @@
     "fn": "Water Resources Support",
     "hasEmail": "mailto:water@example.gov"
   },
-  "publisher": {
-    "name": "U.S. Environmental Protection Agency"
-  },
   "theme": [
     {
       "@type": "Concept",

jsonschema/examples/Dataset/good/theme_simple_example.json

@@ -6,9 +6,6 @@
     "fn": "Water Resources Support",
     "hasEmail": "mailto:water@example.gov"
   },
-  "publisher": {
-    "name": "U.S. Environmental Protection Agency"
-  },
   "theme": [
     "https://example.gov/themes/water",
     "https://example.gov/themes/environment"