diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/azureiidt.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/azureiidt.json
index 4cafad1001b2..1342f954a918 100644
--- a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/azureiidt.json
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/azureiidt.json
@@ -366,6 +366,299 @@
           }
         }
       }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/{iidtName}/assets/{assetName}": {
+      "put": {
+        "tags": [
+          "ITDigitalTwinAssets"
+        ],
+        "operationId": "ITDigitalTwinAssets_CreateOrUpdate",
+        "description": "The operation to create or update a IT Digital Twin Asset.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "iidtName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin."
+          },
+          {
+            "name": "assetName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin asset."
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/Asset"
+            },
+            "description": "Parameters supplied to the Create it digital twin asset operation."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/Asset"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Create an IT Digital Twin Asset": {
+            "$ref": "./examples/CreateAITDigitalTwinAsset.json"
+          }
+        }
+      },
+      "patch": {
+        "tags": [
+          "ITDigitalTwinAssets"
+        ],
+        "operationId": "ITDigitalTwinAsset_Update",
+        "description": "The operation to update a it digital twin asset.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "iidtName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin."
+          },
+          {
+            "name": "assetName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin asset."
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/AssetPatch"
+            },
+            "description": "Parameters supplied to the Update IT Digital Twin Asset operation."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/Asset"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Update asset of an it digital twin": {
+            "$ref": "./examples/UpdateAITDigitalTwinAsset.json"
+          }
+        }
+      },
+      "delete": {
+        "tags": [
+          "ITDigitalTwinAssets"
+        ],
+        "operationId": "ITDigitalTwinAssets_Delete",
+        "description": "The operation to delete it digital twin asset .",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "iidtName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin."
+          },
+          {
+            "name": "assetName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin asset."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "204": {
+            "description": "No Content"
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Delete an IT Digital Twin Asset.": {
+            "$ref": "./examples/DeleteAITDigitalTwinAsset.json"
+          }
+        }
+      },
+      "get": {
+        "tags": [
+          "ITDigitalTwinAssets"
+        ],
+        "operationId": "ITDigitalTwinAssets_Get",
+        "description": "Retrieves information about the it digital twin asset",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "iidtName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin."
+          },
+          {
+            "name": "assetName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin asset."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/Asset"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Get an IT Digital Twin asset.": {
+            "$ref": "./examples/GetAITDigitalTwinAsset.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/{iidtName}/assets": {
+      "get": {
+        "tags": [
+          "ITDigitalTwinAssets"
+        ],
+        "operationId": "ITDigitalTwinAssets_List",
+        "description": "The operation to get all assets of a it digital twin.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "iidtName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the it digital twin."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/Assets"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        },
+        "x-ms-examples": {
+          "List all Assets": {
+            "$ref": "./examples/ListAllAssets.json"
+          }
+        }
+      }
     }
   },
   "definitions": {
@@ -478,6 +771,18 @@
             "name": "isManaged",
             "modelAsString": true
           }
+        },
+        "canAccess": {
+          "description": "Customer concent to allow services maintain enterprise credentials to access enterprise machines.",
+          "enum": [
+            "True",
+            "False"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "canAccess",
+            "modelAsString": true
+          }
         }
       },
       "description": "Describes the properties of a IT Digital Twin."
@@ -628,6 +933,145 @@
         }
       },
       "description": "Enterprise is a testing environment which has several virtual machines on the cloud and several testing machines on-prem."
+    },
+    "AssetProperties": {
+      "properties": {
+        "assetId": {
+          "type": "string",
+          "description": "ResourceId for the virtual machines."
+        },
+        "assetRole": {
+          "description": "Role of an asset, including VMs on Azure and local test machine on-prem",
+          "enum": [
+            "SCCM",
+            "AD",
+            "CS",
+            "DNS",
+            "TestVM"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "assetRole",
+            "modelAsString": true
+          }
+        },
+        "assetStatus": {
+          "description": "Status of an asset",
+          "enum": [
+            "Unknown",
+            "Available",
+            "Unavailable",
+            "Testing"
+          ],
+          "type": "string",
+          "x-ms-enum": {
+            "name": "assetStatus",
+            "modelAsString": true
+          }
+        }
+      },
+      "description": "Describes the properties of an digitalTwins/assets."
+    },
+    "Asset": {
+      "properties": {
+        "properties": {
+          "title": "Asset properties",
+          "description": "List the properties of IT Digital Twin Asset",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/AssetProperties"
+        },
+        "systemData": {
+          "$ref": "#/definitions/systemData",
+          "description": "The system data."
+        }
+      },
+      "allOf": [
+        {
+          "$ref": "#/definitions/Resource"
+        }
+      ],
+      "description": "Asset including virtual machines and the on-prem test devices."
+    },
+    "AssetPatch": {
+      "properties": {
+        "properties": {
+          "title": "Asset properties",
+          "description": "Properties of the child resource asset",
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/AssetProperties"
+        }
+      },
+      "description": "Asset definition for patch operation"
+    },
+    "Assets": {
+      "properties": {
+        "value": {
+          "type": "array",
+          "readOnly": true,
+          "items": {
+            "$ref": "#/definitions/Asset"
+          },
+          "description": "The list of asset"
+        },
+        "nextLink": {
+          "type": "string",
+          "description": "The uri to fetch the next page of asset."
+        }
+      },
+      "description": "A list of asset."
+    },
+    "systemData": {
+      "description": "Metadata pertaining to creation and last modification of the resource.",
+      "type": "object",
+      "readOnly": true,
+      "properties": {
+        "createdBy": {
+          "type": "string",
+          "description": "The identity that created the resource."
+        },
+        "createdByType": {
+          "type": "string",
+          "description": "The type of identity that created the resource.",
+          "enum": [
+            "User",
+            "Application",
+            "ManagedIdentity",
+            "Key"
+          ],
+          "x-ms-enum": {
+            "name": "createdByType",
+            "modelAsString": true
+          }
+        },
+        "createdAt": {
+          "type": "string",
+          "format": "date-time",
+          "description": "The timestamp of resource creation (UTC)."
+        },
+        "lastModifiedBy": {
+          "type": "string",
+          "description": "The identity that last modified the resource."
+        },
+        "lastModifiedByType": {
+          "type": "string",
+          "description": "The type of identity that last modified the resource.",
+          "enum": [
+            "User",
+            "Application",
+            "ManagedIdentity",
+            "Key"
+          ],
+          "x-ms-enum": {
+            "name": "createdByType",
+            "modelAsString": true
+          }
+        },
+        "lastModifiedAt": {
+          "type": "string",
+          "format": "date-time",
+          "description": "The type of identity that last modified the resource."
+        }
+      }
     }
   },
   "parameters": {
diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/CreateAITDigitalTwinAsset.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/CreateAITDigitalTwinAsset.json
new file mode 100644
index 000000000000..3a4e255b9f69
--- /dev/null
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/CreateAITDigitalTwinAsset.json
@@ -0,0 +1,32 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "iidtName": "myIIDT",
+    "assetName": "myAsset",
+    "parameters": {
+      "location": "westeurope",
+      "properties": {
+        "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/Microsoft.Compute/virtualMachines/myAsset",
+        "assetRole": "SCCM",
+        "assetStatus": "Available"
+      }
+    },
+    "api-version": "2020-11-01-privatepreview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/myIIDT/assets/myAsset",
+        "name": "myAsset",
+        "type": "Microsoft.IntelligentITDigitalTwin/digitalTwins/assets",
+        "location": "westeurope",
+        "properties": {
+          "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myAsset",
+          "assetRole": "SCCM",
+          "assetStatus": "Available"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/DeleteAITDigitalTwinAsset.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/DeleteAITDigitalTwinAsset.json
new file mode 100644
index 000000000000..339b5e2af537
--- /dev/null
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/DeleteAITDigitalTwinAsset.json
@@ -0,0 +1,14 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "iidtName": "myIIDT",
+    "assetName": "myAsset",
+    "parameters": {},
+    "api-version": "2020-11-01-privatepreview"
+  },
+  "responses": {
+    "200": {},
+    "204": {}
+  }
+}
diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/GetAITDigitalTwinAsset.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/GetAITDigitalTwinAsset.json
new file mode 100644
index 000000000000..cd16fbb950ad
--- /dev/null
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/GetAITDigitalTwinAsset.json
@@ -0,0 +1,25 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "iidtName": "myIIDT",
+    "assetName": "myAsset",
+    "parameters": {},
+    "api-version": "2020-11-01-privatepreview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/myIIDT/assets/myAsset",
+        "name": "myAsset",
+        "type": "Microsoft.IntelligentITDigitalTwin/digitalTwins/assets",
+        "location": "westus",
+        "properties": {
+          "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myAsset",
+          "assetRole": "SCCM",
+          "assetStatus": "Available"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/ListAllAssets.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/ListAllAssets.json
new file mode 100644
index 000000000000..eab946ab6396
--- /dev/null
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/ListAllAssets.json
@@ -0,0 +1,38 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "iidtName": "myIIDT",
+    "api-version": "2020-11-01-privatepreview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "value": [
+          {
+            "id": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/myIIDT/assets/vm1",
+            "name": "vm1",
+            "type": "Microsoft.IntelligentITDigitalTwin/digitalTwins/assets",
+            "location": "westus",
+            "properties": {
+              "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/vm1",
+              "assetRole": "SCCM",
+              "assetStatus": "Available"
+            }
+          },
+          {
+            "id": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/myIIDT/assets/vm2",
+            "name": "vm2",
+            "type": "Microsoft.IntelligentITDigitalTwin/digitalTwins/assets",
+            "location": "westus",
+            "properties": {
+              "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/vm2",
+              "assetRole": "SCCM",
+              "assetStatus": "Available"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/UpdateAITDigitalTwinAsset.json b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/UpdateAITDigitalTwinAsset.json
new file mode 100644
index 000000000000..61a632728169
--- /dev/null
+++ b/specification/azureiidt/resource-manager/Microsoft.IntelligentITDigitalTwin/preview/2020-07-15-privatepreview/examples/UpdateAITDigitalTwinAsset.json
@@ -0,0 +1,31 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "iidtName": "myIIDT",
+    "assetName": "myAsset",
+    "parameters": {
+      "properties": {
+        "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myAsset",
+        "assetRole": "SCCM",
+        "assetStatus": "Available"
+      }
+    },
+    "api-version": "2020-11-01-privatepreview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.IntelligentITDigitalTwin/digitalTwins/myIIDT/assets/myAsset",
+        "name": "myAsset",
+        "type": "Microsoft.IntelligentITDigitalTwin/digitalTwins/myAsset",
+        "location": "westus",
+        "properties": {
+          "assetId": "subscriptions/{subscription-id}/resourcegroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myAsset",
+          "assetRole": "SCCM",
+          "assetStatus": "Available"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/azureiidt/resource-manager/readme.md b/specification/azureiidt/resource-manager/readme.md
index a302ccd3f3e2..91118036f5e1 100644
--- a/specification/azureiidt/resource-manager/readme.md
+++ b/specification/azureiidt/resource-manager/readme.md
@@ -60,7 +60,6 @@ This is not used by Autorest itself.
 ```yaml $(swagger-to-sdk)
 swagger-to-sdk:
   - repo: azure-sdk-for-python
-  - repo: azure-sdk-for-java
   - repo: azure-sdk-for-go
   - repo: azure-sdk-for-js
   - repo: azure-sdk-for-ruby