diff --git a/specification/purview/data-plane/Azure.Analytics.Purview.DataMap/preview/2024-03-01-preview/purviewdatamap.json b/specification/purview/data-plane/Azure.Analytics.Purview.DataMap/preview/2024-03-01-preview/purviewdatamap.json
index d5f515271714..86fc97deaea9 100644
--- a/specification/purview/data-plane/Azure.Analytics.Purview.DataMap/preview/2024-03-01-preview/purviewdatamap.json
+++ b/specification/purview/data-plane/Azure.Analytics.Purview.DataMap/preview/2024-03-01-preview/purviewdatamap.json
@@ -6953,7 +6953,7 @@
         },
         "properties": {
           "type": "object",
-          "description": "The additional properties of the item.",
+          "description": "Additional properties of the item.",
           "additionalProperties": {
             "type": "string"
           }
@@ -6966,7 +6966,7 @@
     },
     "NavigationMode": {
       "type": "string",
-      "description": "The enum of navigation mode.",
+      "description": "The navigation mode.",
       "enum": [
         "assetType",
         "azureResourceHierarchy"
@@ -6981,7 +6981,8 @@
       "properties": {
         "path": {
           "type": "string",
-          "description": "The identifier of the item. The path starts with an empty string or a single slash. To navigate further, you need to concatenate with a slash to form the full itemPath using the previous navigation response's relative item path."
+          "description": "The identifier of the item. The path starts with an empty string or a single slash. To navigate further, you need to concatenate with a slash to form the full itemPath using the previous navigation response's relative item path.",
+          "required": true
         },
         "extendedProperties": {
           "type": "object",
@@ -6999,7 +7000,7 @@
         "items": {
           "type": "array",
           "items": {
-            "$ref": "#/definitions/NavigationElement"
+            "$ref": "#/definitions/NavigationItem"
           }
         },
         "continuationToken": {
@@ -7009,25 +7010,29 @@
       },
       "description": "The response payload of the Navigation API."
     },
-    "NavigationElement": {
+    "NavigationItem": {
       "type": "object",
       "description": "The item payload of the NavigationResult.",
       "properties": {
         "name": {
           "type": "string",
-          "description": "The name of the item."
+          "description": "The name of the item.",
+          "required": true
         },
         "type": {
           "type": "string",
-          "description": "The type name of the item. Eg. EntityType."
+          "description": "The type name of the item. Eg. EntityType.",
+          "required": true
         },
         "isLeafNode": {
           "type": "boolean",
-          "description": "Indicates whether the item is a leaf node. If it is, further navigation is not possible."
+          "description": "Indicates whether the item is a leaf node. If it is, further navigation is not possible.",
+          "required": true
         },
         "isEntity": {
           "type": "boolean",
-          "description": "Whether the item is Entity. If yes, can get complete definition of an entity given its itemPath"
+          "description": "Whether the item is Entity. If yes, can get complete definition of an entity given its itemPath",
+          "required": true
         },
         "itemPath": {
           "$ref": "#/definitions/ItemPath"
@@ -7035,11 +7040,13 @@
         "count": {
           "type": "integer",
           "format": "int32",
-          "description": "The count of the top level asset. Won't return if request payload 'includeNextLevelAssetCount' is false."
+          "description": "The count of the top level asset. Won't return if request payload 'includeNextLevelAssetCount' is false.",
+          "required": false
         },
         "properties": {
           "type": "object",
           "description": "The additional properties of the navigation element.",
+          "required": true,
           "additionalProperties": {
             "type": "string"
           }