big tings

registry/schema-org/ProductModel.schema.json

@@ -0,0 +1,49 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "schema:ProductModel",
+  "title": "ProductModel",
+  "description": "A datasheet or vendor specification of a product (in the sense of a prototypical description).",
+  "type": "object",
+  "allOf": [
+    {
+      "description": "Any offered product or service. For example: a pair of shoes; a concert ticket; the rental of a car; a haircut; or an episode of a TV show streamed online.",
+      "$ref": "schema:Product"
+    }
+  ],
+  "properties": {
+    "isVariantOf": {
+      "description": "Indicates the kind of product that this is a variant of. In the case of [[ProductModel]], this is a pointer (from a ProductModel) to a base product from which this product is a variant. It is safe to infer that the variant inherits all product features from the base model, unless defined locally. This is not transitive. In the case of a [[ProductGroup]], the group description also serves as a template, representing a set of Products that vary on explicitly defined, specific dimensions only (so it defines both a set of variants, as well as which values distinguish amongst those variants). When used with [[ProductGroup]], this property can apply to any [[Product]] included in the group.",
+      "oneOf": [
+        {
+          "anyOf": [
+            { "$ref": "schema:ProductGroup" },
+            { "$ref": "schema:ProductModel" }
+          ]
+        },
+        {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              { "$ref": "schema:ProductGroup" },
+              { "$ref": "schema:ProductModel" }
+            ]
+          }
+        }
+      ]
+    },
+    "predecessorOf": {
+      "description": "A pointer from a previous, often discontinued variant of the product to its newer variant.",
+      "oneOf": [
+        { "$ref": "schema:ProductModel" },
+        { "type": "array", "items": { "$ref": "schema:ProductModel" } }
+      ]
+    },
+    "successorOf": {
+      "description": "A pointer from a newer variant of a product  to its previous, often discontinued predecessor.",
+      "oneOf": [
+        { "$ref": "schema:ProductModel" },
+        { "type": "array", "items": { "$ref": "schema:ProductModel" } }
+      ]
+    }
+  }
+}