diff --git a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/GetAExperimentExecutionDetails.json b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/GetAExperimentExecutionDetails.json
index 93ec191e56e1..eff83d10db73 100644
--- a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/GetAExperimentExecutionDetails.json
+++ b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/GetAExperimentExecutionDetails.json
@@ -14,27 +14,28 @@
         "id": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Chaos/experiments/exampleExperiment/executionDetails/f24500ad-744e-4a26-864b-b76199eac333",
         "name": "f24500ad-744e-4a26-864b-b76199eac333",
         "properites": {
-          "createdDateUtc": "2020-12-14T21:52:42.917983Z",
-          "lastActionDateUtc": "2020-12-14T21:52:52.2552574Z",
-          "startDateUtc": "2020-12-14T21:52:52.2552574Z",
-          "stopDateUtc": "2020-12-14T21:56:18.9281956Z",
+          "createdDateTime": "2020-12-14T21:52:42.917983Z",
+          "lastActionDateTime": "2020-12-14T21:52:52.2552574Z",
+          "startDateTime": "2020-12-14T21:52:52.2552574Z",
+          "stopDateTime": "2020-12-14T21:56:18.9281956Z",
+          "experimentId": "f24500ad-744e-4a26-864b-b76199eac333",
           "status": "failed",
           "failureReason": "Dependency failure",
           "runInformation": {
             "steps": [
               {
-                "name": "FirstStep",
-                "id": "FirstStep",
+                "stepName": "FirstStep",
+                "stepId": "FirstStep",
                 "status": "failed",
                 "branches": [
                   {
-                    "name": "FirstBranch",
-                    "id": "FirstBranch",
+                    "branchName": "FirstBranch",
+                    "branchId": "FirstBranch",
                     "status": "failed",
                     "actions": [
                       {
-                        "name": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
-                        "id": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
+                        "actionName": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
+                        "actionId": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
                         "status": "failed",
                         "startTime": "2020-12-14T13:56:13.6270153-08:00",
                         "endTime": "2020-12-14T13:56:13.6270153-08:00",
@@ -42,17 +43,16 @@
                           {
                             "status": "succeeded",
                             "target": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Compute/virtualMachines/VM1",
-                            "failedDateUtc": "2021-04-02T16:30:55+00:00",
-                            "completedDateUtc": "2021-04-02T17:30:55+00:00"
+                            "targetFailedTime": "2021-04-02T16:30:55+00:00",
+                            "targetCompletedTime": "2021-04-02T17:30:55+00:00"
                           },
                           {
                             "status": "failed",
                             "target": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Compute/virtualMachines/VM1",
-                            "failedDateUtc": "2021-04-02T16:30:55+00:00",
-                            "completedDateUtc": "2021-04-02T17:30:55+00:00"
+                            "targetFailedTime": "2021-04-02T16:30:55+00:00",
+                            "targetCompletedTime": "2021-04-02T17:30:55+00:00"
                           }
-                        ],
-                        "lastUpdatedDateUtc": "2020-12-14T13:56:13.6270153-08:00"
+                        ]
                       }
                     ]
                   }
diff --git a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/ListExperimentExecutionsDetails.json b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/ListExperimentExecutionsDetails.json
index eec78f8df108..8a7a18b15932 100644
--- a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/ListExperimentExecutionsDetails.json
+++ b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/examples/ListExperimentExecutionsDetails.json
@@ -15,27 +15,28 @@
             "id": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Chaos/experiments/exampleExperiment/executionDetails/f24500ad-744e-4a26-864b-b76199eac333",
             "name": "f24500ad-744e-4a26-864b-b76199eac333",
             "properties": {
-              "createdDateUtc": "2020-12-14T21:52:42.917983Z",
-              "lastActionDateUtc": "2020-12-14T21:52:52.2552574Z",
-              "startDateUtc": "2020-12-14T21:52:52.2552574Z",
-              "stopDateUtc": "2020-12-14T21:56:18.9281956Z",
+              "createdDateTime": "2020-12-14T21:52:42.917983Z",
+              "lastActionDateTime": "2020-12-14T21:52:52.2552574Z",
+              "startDateTime": "2020-12-14T21:52:52.2552574Z",
+              "stopDateTime": "2020-12-14T21:56:18.9281956Z",
               "status": "failed",
               "failureReason": "Dependency failure",
+              "experimentId": "f24500ad-744e-4a26-864b-b76199eac333",
               "runInformation": {
                 "steps": [
                   {
-                    "name": "FirstStep",
-                    "id": "FirstStep",
+                    "stepName": "FirstStep",
+                    "stepId": "FirstStep",
                     "status": "failed",
                     "branches": [
                       {
-                        "name": "FirstBranch",
-                        "id": "FirstBranch",
+                        "branchName": "FirstBranch",
+                        "branchId": "FirstBranch",
                         "status": "failed",
                         "actions": [
                           {
-                            "name": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
-                            "id": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
+                            "actionName": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
+                            "actionId": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
                             "status": "failed",
                             "startTime": "2020-12-14T13:56:13.6270153-08:00",
                             "endTime": "2020-12-14T13:56:13.6270153-08:00",
@@ -43,11 +44,10 @@
                               {
                                 "status": "succeeded",
                                 "target": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Compute/virtualMachines/VM1",
-                                "failedDateUtc": "2021-04-02T16:30:55+00:00",
-                                "completedDateUtc": "2021-04-02T17:30:55+00:00"
+                                "targetFailedTime": "2021-04-02T16:30:55+00:00",
+                                "targetCompletedTime": "2021-04-02T17:30:55+00:00"
                               }
-                            ],
-                            "lastUpdatedDateUtc": "2020-12-14T13:56:13.6270153-08:00"
+                            ]
                           }
                         ]
                       }
@@ -62,27 +62,28 @@
             "id": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Chaos/experiments/exampleExperiment/executionDetails/14d98367-52ef-4596-be4f-53fc81bbfc33",
             "name": "14d98367-52ef-4596-be4f-53fc81bbfc33",
             "properties": {
-              "createdDateUtc": "2020-12-14T21:52:42.917983Z",
-              "lastActionDateUtc": "2020-12-14T21:52:52.2552574Z",
-              "startDateUtc": "2020-12-14T21:52:52.2552574Z",
-              "stopDateUtc": "2020-12-14T21:56:18.9281956Z",
+              "createdDateTime": "2020-12-14T21:52:42.917983Z",
+              "lastActionDateTime": "2020-12-14T21:52:52.2552574Z",
+              "startDateTime": "2020-12-14T21:52:52.2552574Z",
+              "stopDateTime": "2020-12-14T21:56:18.9281956Z",
               "status": "success",
               "failureReason": "",
+              "experimentId": "14d98367-52ef-4596-be4f-53fc81bbfc33",
               "runInformation": {
                 "steps": [
                   {
-                    "name": "FirstStep",
-                    "id": "FirstStep",
+                    "stepName": "FirstStep",
+                    "stepId": "FirstStep",
                     "status": "success",
                     "branches": [
                       {
-                        "name": "FirstBranch",
-                        "id": "FirstBranch",
+                        "branchName": "FirstBranch",
+                        "branchId": "FirstBranch",
                         "status": "success",
                         "actions": [
                           {
-                            "name": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
-                            "id": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
+                            "actionName": "urn:provider:agent-v2:Microsoft.Azure.Chaos.Fault.CPUPressureAllProcessors",
+                            "actionId": "59499d33-6751-4b6e-a1f6-58f4d56a040a",
                             "status": "success",
                             "startTime": "2020-12-14T13:56:13.6270153-08:00",
                             "endTime": "2020-12-14T13:56:13.6270153-08:00",
@@ -90,11 +91,10 @@
                               {
                                 "status": "succeeded",
                                 "target": "/subscriptions/6b052e15-03d3-4f17-b2e1-be7f07588291/resourceGroups/exampleRG/providers/Microsoft.Compute/virtualMachines/VM1",
-                                "failedDateUtc": "2021-04-02T16:30:55+00:00",
-                                "completedDateUtc": "2021-04-02T17:30:55+00:00"
+                                "targetFailedTime": "2021-04-02T16:30:55+00:00",
+                                "targetCompletedTime": "2021-04-02T17:30:55+00:00"
                               }
-                            ],
-                            "lastUpdatedDateUtc": "2020-12-14T13:56:13.6270153-08:00"
+                            ]
                           }
                         ]
                       }
diff --git a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
index 1538b6716295..aac351b5fb28 100644
--- a/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
+++ b/specification/chaos/resource-manager/Microsoft.Chaos/preview/2021-09-15-preview/types/experiments.json
@@ -498,14 +498,14 @@
           "type": "string",
           "readOnly": true
         },
-        "failedDateUtc": {
+        "targetFailedTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the failed date time.",
           "readOnly": true,
           "x-nullable": true
         },
-        "completedDateUtc": {
+        "targetCompletedTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the completed date time.",
@@ -602,25 +602,25 @@
           "type": "string",
           "readOnly": true
         },
-        "createdDateUtc": {
+        "createdDateTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the created date time.",
           "readOnly": true
         },
-        "lastActionDateUtc": {
+        "lastActionDateTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the last action date time.",
           "readOnly": true
         },
-        "startDateUtc": {
+        "startDateTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the start date time.",
           "readOnly": true
         },
-        "stopDateUtc": {
+        "stopDateTime": {
           "type": "string",
           "format": "date-time",
           "description": "String that represents the stop date time.",
@@ -636,6 +636,9 @@
               "items": {
                 "$ref": "#/definitions/stepStatus"
               },
+              "x-ms-identifiers": [
+                "stepName"
+              ],
               "readOnly": true
             }
           },
@@ -647,12 +650,12 @@
       "description": "Model that represents the a list of branches and branch statuses.",
       "type": "object",
       "properties": {
-        "name": {
+        "stepName": {
           "description": "The name of the step.",
           "type": "string",
           "readOnly": true
         },
-        "id": {
+        "stepId": {
           "description": "The id of the step.",
           "type": "string",
           "readOnly": true
@@ -668,6 +671,9 @@
           "items": {
             "$ref": "#/definitions/branchStatus"
           },
+          "x-ms-identifiers": [
+            "branchName"
+          ],
           "readOnly": true
         }
       }
@@ -676,12 +682,12 @@
       "description": "Model that represents the a list of actions and action statuses.",
       "type": "object",
       "properties": {
-        "name": {
+        "branchName": {
           "description": "The name of the branch status.",
           "type": "string",
           "readOnly": true
         },
-        "id": {
+        "branchId": {
           "description": "The id of the branch status.",
           "type": "string",
           "readOnly": true
@@ -697,6 +703,9 @@
           "items": {
             "$ref": "#/definitions/actionStatus"
           },
+          "x-ms-identifiers": [
+            "actionId"
+          ],
           "readOnly": true
         }
       }
@@ -705,12 +714,12 @@
       "type": "object",
       "description": "Model that represents the an action and its status.",
       "properties": {
-        "name": {
+        "actionName": {
           "description": "The name of the action status.",
           "type": "string",
           "readOnly": true
         },
-        "id": {
+        "actionId": {
           "description": "The id of the action status.",
           "type": "string",
           "readOnly": true