diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/datafactory.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/datafactory.json
index 987f1e3df0be..112249517c62 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/datafactory.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/datafactory.json
@@ -4290,6 +4290,14 @@
           },
           "readOnly": true
         },
+        "runDimension": {
+          "description": "Run dimension emitted by Pipeline run.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "readOnly": true
+        },
         "invokedBy": {
           "description": "Entity that started the pipeline run.",
           "$ref": "#/definitions/PipelineRunInvokedBy",
@@ -4529,6 +4537,22 @@
             "type": "string"
           },
           "readOnly": true
+        },
+        "runDimension": {
+          "description": "Run dimention for which trigger was fired.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "readOnly": true
+        },
+        "DependencyStatus": {
+          "description": "Status of the upstream pipelines.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "readOnly": true
         }
       },
       "additionalProperties": {
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
index 0db420e5ad13..cf961923b1a9 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Pipeline.json
@@ -41,6 +41,14 @@
             "type": "object"
           }
         },
+        "runDimensions": {
+          "description": "Dimensions emitted by Pipeline.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "object",
+            "description": "Type: string (or Expression with resultType string)."
+          }
+        },
         "folder": {
           "description": "The folder that this Pipeline is in. If not specified, Pipeline will appear at the root level.",
           "type": "object",
diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Trigger.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Trigger.json
index d0671194aa21..2cf942b5f1cc 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Trigger.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/Trigger.json
@@ -585,6 +585,50 @@
       "required": [
         "typeProperties"
       ]
+    },
+    "ChainingTrigger": {
+      "description": "Trigger that schedules pipeline runs based on dependent pipelines successful completion.",
+      "type": "object",
+      "allOf": [
+        {
+          "$ref": "#/definitions/Trigger"
+        }
+      ],
+      "properties": {
+        "pipeline": {
+          "$ref": "../datafactory.json#/definitions/TriggerPipelineReference",
+          "description": "Pipeline for which runs are created when all dependent pipelines complete successfully."
+        },
+        "typeProperties": {
+          "description": "Chaining Trigger properties.",
+          "x-ms-client-flatten": true,
+          "properties": {
+            "dependsOn": {
+              "type": "array",
+              "items": {
+                "$ref": "../datafactory.json#/definitions/PipelineReference"
+              },
+              "description": "Dependent Pipelines."
+            },
+            "retryPolicy": {
+              "$ref": "#/definitions/RetryPolicy",
+              "description": "Retry policy that will be applied for failed pipeline runs."
+            },
+            "runDimension": {
+              "description": "Run Dimenstion property that needs to be emitted by dependent pipelines.",
+              "type": "string"
+            }
+          },
+          "required": [
+            "runDimension",
+            "dependsOn"
+          ]
+        }
+      },
+      "required": [
+        "pipeline",
+        "typeProperties"
+      ]
     }
   }
 }