diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/checkAccessSynapseRbac.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/checkAccessSynapseRbac.json
new file mode 100644
index 000000000000..7dcbd04aa09f
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/checkAccessSynapseRbac.json
@@ -0,0 +1,264 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2020-08-01-preview",
+    "title": "AccessControlClient"
+  },
+  "x-ms-parameterized-host": {
+    "hostTemplate": "{endpoint}",
+    "useSchemePrefix": false,
+    "parameters": [
+      {
+        "$ref": "#/parameters/Endpoint"
+      }
+    ]
+  },
+  "schemes": [
+    "https"
+  ],
+  "paths": {
+    "/checkAccessSynapseRbac": {
+      "post": {
+        "tags": [
+          "CheckPrincipalAccess"
+        ],
+        "operationId": "CheckPrincipalAccess",
+        "description": "Check if the given principalId has access to perform list of actions at a given scope.",
+        "x-ms-examples": {
+          "Check access": {
+            "$ref": "./examples/CheckAccessSynapseRbac.json"
+          }
+        },
+        "consumes": [
+          "application/json",
+          "text/json"
+        ],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "name": "request",
+            "in": "body",
+            "required": true,
+            "x-ms-client-flatten": true,
+            "description": "Details of scope, list of actions and principal.",
+            "schema": {
+              "$ref": "#/definitions/CheckPrincipalAccessRequest"
+            }
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "$ref": "#/definitions/CheckPrincipalAccessResponse"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "ErrorContract": {
+      "title": "Error details.",
+      "description": "Contains details when the response code indicates an error.",
+      "type": "object",
+      "properties": {
+        "error": {
+          "description": "The error details.",
+          "$ref": "#/definitions/ErrorResponse"
+        }
+      }
+    },
+    "ErrorResponse": {
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        },
+        "target": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ErrorDetail"
+          }
+        }
+      }
+    },
+    "ErrorDetail": {
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        },
+        "target": {
+          "type": "string"
+        }
+      }
+    },
+    "CheckPrincipalAccessRequest": {
+      "description": "Check access request details",
+      "type": "object",
+      "required": [
+        "scope",
+        "actions",
+        "subject"
+      ],
+      "properties": {
+        "subject": {
+          "description": "Subject details",
+          "type": "object",
+          "$ref": "#/definitions/SubjectInfo"
+        },
+        "actions": {
+          "description": "List of actions.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Action"
+          }
+        },
+        "scope": {
+          "description": "Scope at which the check access is done.",
+          "type": "string"
+        }
+      }
+    },
+    "Action": {
+      "description": "Action Info",
+      "type": "object",
+      "required": [
+        "id",
+        "isDataAction"
+      ],
+      "properties": {
+        "id": {
+          "description": "Action Id.",
+          "type": "string"
+        },
+        "isDataAction": {
+          "description": "Is a data action or not.",
+          "type": "boolean"
+        }
+      }
+    },
+    "CheckPrincipalAccessResponse": {
+      "description": "Check access response details",
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/CheckAccessDecision"
+      }
+    },
+    "SubjectInfo": {
+      "description": "Subject details",
+      "type": "object",
+      "required": [
+        "principalId"
+      ],
+      "properties": {
+        "principalId": {
+          "description": "Principal Id",
+          "format": "uuid",
+          "type": "string"
+        },
+        "groupIds": {
+          "description": "List of group Ids that the principalId is part of.",
+          "type": "array",
+          "items": {
+            "format": "uuid",
+            "type": "string"
+          }
+        }
+      }
+    },
+    "CheckAccessDecision": {
+      "description": "Check access response details",
+      "type": "object",
+      "properties": {
+        "accessDecision": {
+          "description": "Access Decision.",
+          "type": "string"
+        },
+        "actionId": {
+          "description": "Action Id.",
+          "type": "string"
+        },
+        "roleAssignment": {
+          "$ref": "#/definitions/RoleAssignmentDetails"
+        }
+      }
+    },
+    "RoleAssignmentDetails": {
+      "description": "Role Assignment response details",
+      "type": "object",
+      "properties": {
+        "id": {
+          "description": "Role Assignment ID",
+          "type": "string"
+        },
+        "roleDefinitionId": {
+          "description": "Role ID of the Synapse Built-In Role",
+          "format": "uuid",
+          "type": "string"
+        },
+        "principalId": {
+          "description": "Object ID of the AAD principal or security-group",
+          "format": "uuid",
+          "type": "string"
+        },
+        "scope": {
+          "description": "Scope at the role assignment is created",
+          "type": "string"
+        },
+        "principalType": {
+          "description": "Type of the principal Id: User, Group or ServicePrincipal",
+          "type": "string"
+        }
+      }
+    }
+  },
+  "parameters": {
+    "Endpoint": {
+      "name": "endpoint",
+      "description": "The workspace development endpoint, for example https://myworkspace.dev.azuresynapse.net.",
+      "required": true,
+      "type": "string",
+      "in": "path",
+      "x-ms-skip-url-encoding": true,
+      "x-ms-parameter-location": "client"
+    },
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "The Synapse client API Version."
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/CheckAccessSynapseRbac.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/CheckAccessSynapseRbac.json
new file mode 100644
index 000000000000..6b4ddb1f1df1
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/CheckAccessSynapseRbac.json
@@ -0,0 +1,62 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "api-version": "2020-08-01-preview",
+    "request": {
+      "subject": {
+        "principalId": "00000000-0000-0000-0000-000000000000",
+        "groupIds": [
+          "00000000-0000-0000-0000-000000000000",
+          "00000000-0000-0000-0000-000000000000"
+        ]
+      },
+      "scope": "workspaces/exampleWorkspace",
+      "actions": [
+        {
+          "id": "Action 1",
+          "isDataAction": true
+        },
+        {
+          "id": "Action 2",
+          "isDataAction": true
+        }
+      ]
+    }
+  },
+  "responses": {
+    "200": {
+      "body": [
+        {
+          "accessDecision": "Allowed || NotAllowed",
+          "actionId": "Action 1",
+          "roleAssignment": {
+            "id": "00000000-0000-0000-0000-000000000000",
+            "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+            "principalId": "00000000-0000-0000-0000-000000000000",
+            "scope": "workspaces/exampleWorkspace",
+            "principalType": "User || Group || ServicePrincipal"
+          }
+        },
+        {
+          "accessDecision": "Allowed || NotAllowed",
+          "actionId": "Action 1",
+          "roleAssignment": {
+            "id": "00000000-0000-0000-0000-000000000000",
+            "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+            "principalId": "00000000-0000-0000-0000-000000000000",
+            "scope": "workspaces/exampleWorkspace",
+            "principalType": "User || Group || ServicePrincipal"
+          }
+        }
+      ]
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_CreateRoleAssignment.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_CreateRoleAssignment.json
new file mode 100644
index 000000000000..11b7f8841481
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_CreateRoleAssignment.json
@@ -0,0 +1,32 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "roleAssignmentId": "00000000-0000-0000-0000-000000000000",
+    "api-version": "2020-08-01-preview",
+    "request": {
+      "roleId": "00000000-0000-0000-0000-000000000000",
+      "principalId": "00000000-0000-0000-0000-000000000000",
+      "scope": "workspaces/exampleWorkspace",
+      "principalType": "User || Group || ServicePrincipal"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "00000000-0000-0000-0000-000000000000",
+        "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+        "principalId": "00000000-0000-0000-0000-000000000000",
+        "scope": "workspaces/exampleWorkspace",
+        "principalType": "User || Group || ServicePrincipal"
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_DeleteRoleAssignmentById.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_DeleteRoleAssignmentById.json
new file mode 100644
index 000000000000..4f6934c613b0
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_DeleteRoleAssignmentById.json
@@ -0,0 +1,19 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "roleAssignmentId": "00000000-0000-0000-0000-000000000000",
+    "api-version": "2020-08-01-preview"
+  },
+  "responses": {
+    "200": {},
+    "204": {},
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_GetRoleAssignmentById.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_GetRoleAssignmentById.json
new file mode 100644
index 000000000000..22701a834ab9
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_GetRoleAssignmentById.json
@@ -0,0 +1,26 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "roleAssignmentId": "00000000-0000-0000-0000-000000000000",
+    "api-version": "2020-08-01-preview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "00000000-0000-0000-0000-000000000000",
+        "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+        "principalId": "00000000-0000-0000-0000-000000000000",
+        "scope": "workspaces/exampleWorkspace",
+        "principalType": "User || Group || ServicePrincipal"
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_ListRoleAssignments.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_ListRoleAssignments.json
new file mode 100644
index 000000000000..ced7b5ef11b4
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleAssignments_ListRoleAssignments.json
@@ -0,0 +1,43 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "api-version": "2020-08-01-preview",
+    "roleId": "00000000-0000-0000-0000-000000000000",
+    "principalId": "00000000-0000-0000-0000-000000000000",
+    "scope": "workspaces/exampleWorkspace"
+  },
+  "responses": {
+    "200": {
+      "headers": {
+        "x-ms-continuation": null
+      },
+      "body": {
+        "count": 2,
+        "value": [
+          {
+            "id": "00000000-0000-0000-0000-000000000000",
+            "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+            "principalId": "00000000-0000-0000-0000-000000000000",
+            "scope": "workspaces/exampleWorkspace",
+            "principalType": "User || Group || ServicePrincipal"
+          },
+          {
+            "id": "00000000-0000-0000-0000-000000000000",
+            "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+            "principalId": "00000000-0000-0000-0000-000000000000",
+            "scope": "workspaces/exampleWorkspace",
+            "principalType": "User || Group || ServicePrincipal"
+          }
+        ]
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_GetRoleDefinitionById.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_GetRoleDefinitionById.json
new file mode 100644
index 000000000000..69fcf735b5fa
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_GetRoleDefinitionById.json
@@ -0,0 +1,50 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "roleDefinitionId": "00000000-0000-0000-0000-000000000000",
+    "api-version": "2020-08-01-preview"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "00000000-0000-0000-0000-000000000000",
+        "name": "Synapse role name",
+        "isBuiltIn": true,
+        "description": "Role description",
+        "permissions": [
+          {
+            "actions": [
+              "Action 1",
+              "Action 2"
+            ],
+            "dataActions": [
+              "Data Action 1",
+              "Data Action 2"
+            ],
+            "notActions": [
+              "Not Action 1",
+              "Not Action 2"
+            ],
+            "notDataActions": [
+              "Data Action 1",
+              "Data Action 2"
+            ]
+          }
+        ],
+        "scopes": [
+          "scope 1",
+          "scope 2"
+        ],
+        "availabilityStatus": "AvailabilityStatusValue"
+      }
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListRoleDefinitions.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListRoleDefinitions.json
new file mode 100644
index 000000000000..e247b1fb8eb1
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListRoleDefinitions.json
@@ -0,0 +1,82 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "api-version": "2020-08-01-preview"
+  },
+  "responses": {
+    "200": {
+      "body": [
+        {
+          "id": "00000000-0000-0000-0000-000000000000",
+          "name": "Synapse role name 1",
+          "isBuiltIn": true,
+          "description": "Role description 1",
+          "permissions": [
+            {
+              "actions": [
+                "Action 1",
+                "Action 2"
+              ],
+              "dataActions": [
+                "Data Action 1",
+                "Data Action 2"
+              ],
+              "notActions": [
+                "Not Action 1",
+                "Not Action 2"
+              ],
+              "notDataActions": [
+                "Data Action 1",
+                "Data Action 2"
+              ]
+            }
+          ],
+          "scopes": [
+            "scope 1",
+            "scope 2"
+          ],
+          "availabilityStatus": "AvailabilityStatusValue"
+        },
+        {
+          "id": "00000000-0000-0000-0000-000000000000",
+          "name": "Synapse role name 2",
+          "isBuiltIn": true,
+          "description": "Role description 2",
+          "permissions": [
+            {
+              "actions": [
+                "Action 1",
+                "Action 2"
+              ],
+              "dataActions": [
+                "Data Action 1",
+                "Data Action 2"
+              ],
+              "notActions": [
+                "Not Action 1",
+                "Not Action 2"
+              ],
+              "notDataActions": [
+                "Data Action 1",
+                "Data Action 2"
+              ]
+            }
+          ],
+          "scopes": [
+            "scope 1",
+            "scope 2"
+          ],
+          "availabilityStatus": "AvailabilityStatusValue"
+        }
+      ]
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListScopes.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListScopes.json
new file mode 100644
index 000000000000..3323776f2bea
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/examples/RoleDefinitions_ListScopes.json
@@ -0,0 +1,23 @@
+{
+  "parameters": {
+    "endpoint": "exampleWorkspace.dev.azuresynapse.net",
+    "api-version": "2020-08-01-preview"
+  },
+  "responses": {
+    "200": {
+      "body": [
+        "scope 1",
+        "scope 2",
+        "scope 3"
+      ]
+    },
+    "default": {
+      "body": {
+        "error": {
+          "code": "Error code",
+          "message": "Error message"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleAssignments.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleAssignments.json
new file mode 100644
index 000000000000..247cb292486d
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleAssignments.json
@@ -0,0 +1,398 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2020-08-01-preview",
+    "title": "AccessControlClient"
+  },
+  "x-ms-parameterized-host": {
+    "hostTemplate": "{endpoint}",
+    "useSchemePrefix": false,
+    "parameters": [
+      {
+        "$ref": "#/parameters/Endpoint"
+      }
+    ]
+  },
+  "schemes": [
+    "https"
+  ],
+  "paths": {
+    "/roleAssignments": {
+      "get": {
+        "tags": [
+          "RoleAssignments"
+        ],
+        "operationId": "RoleAssignments_ListRoleAssignments",
+        "description": "List role assignments.",
+        "x-ms-examples": {
+          "List role assignments": {
+            "$ref": "./examples/RoleAssignments_ListRoleAssignments.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/RoleIdParameter"
+          },
+          {
+            "$ref": "#/parameters/PrincipalIdParameter"
+          },
+          {
+            "$ref": "#/parameters/ScopeParameter"
+          },
+          {
+            "$ref": "#/parameters/XMsContinuationToken"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "headers": {
+              "x-ms-continuation": {
+                "description": "If the number of role assignments to be listed exceeds the maxResults limit, a continuation token is returned in this response header.  When a continuation token is returned in the response, it must be specified in a subsequent invocation of the list operation to continue listing the role assignments.",
+                "type": "string"
+              }
+            },
+            "schema": {
+              "$ref": "#/definitions/RoleAssignmentDetailsList"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    },
+    "/roleAssignments/{roleAssignmentId}": {
+      "put": {
+        "tags": [
+          "RoleAssignments"
+        ],
+        "operationId": "RoleAssignments_CreateRoleAssignment",
+        "description": "Create role assignment.",
+        "x-ms-examples": {
+          "Create role assignment": {
+            "$ref": "./examples/RoleAssignments_CreateRoleAssignment.json"
+          }
+        },
+        "consumes": [
+          "application/json",
+          "text/json"
+        ],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "name": "request",
+            "in": "body",
+            "required": true,
+            "x-ms-client-flatten": true,
+            "description": "Details of role id, scope and object id.",
+            "schema": {
+              "$ref": "#/definitions/RoleAssignmentRequest"
+            }
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/RoleAssignmentIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "$ref": "#/definitions/RoleAssignmentDetails"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorContract"
+            }
+          }
+        }
+      },
+      "get": {
+        "tags": [
+          "RoleAssignments"
+        ],
+        "operationId": "RoleAssignments_GetRoleAssignmentById",
+        "description": "Get role assignment by role assignment Id.",
+        "x-ms-examples": {
+          "Get role assignment information": {
+            "$ref": "./examples/RoleAssignments_GetRoleAssignmentById.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/RoleAssignmentIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "$ref": "#/definitions/RoleAssignmentDetails"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorContract"
+            }
+          }
+        }
+      },
+      "delete": {
+        "tags": [
+          "RoleAssignments"
+        ],
+        "operationId": "RoleAssignments_DeleteRoleAssignmentById",
+        "description": "Delete role assignment by role assignment Id.",
+        "x-ms-examples": {
+          "Delete role assignment": {
+            "$ref": "./examples/RoleAssignments_DeleteRoleAssignmentById.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/RoleAssignmentIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response."
+          },
+          "204": {
+            "description": "No Content."
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "ErrorContract": {
+      "title": "Error details.",
+      "description": "Contains details when the response code indicates an error.",
+      "type": "object",
+      "properties": {
+        "error": {
+          "description": "The error details.",
+          "$ref": "#/definitions/ErrorResponse"
+        }
+      }
+    },
+    "ErrorResponse": {
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        },
+        "target": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ErrorDetail"
+          }
+        }
+      }
+    },
+    "ErrorDetail": {
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        },
+        "target": {
+          "type": "string"
+        }
+      }
+    },
+    "RoleAssignmentRequest": {
+      "description": "Role Assignment request details",
+      "type": "object",
+      "required": [
+        "roleId",
+        "principalId",
+        "scope"
+      ],
+      "properties": {
+        "roleId": {
+          "description": "Role ID of the Synapse Built-In Role",
+          "format": "uuid",
+          "type": "string"
+        },
+        "principalId": {
+          "description": "Object ID of the AAD principal or security-group",
+          "format": "uuid",
+          "type": "string"
+        },
+        "scope": {
+          "description": "Scope at which the role assignment is created",
+          "type": "string"
+        },
+        "principalType": {
+          "description": "Type of the principal Id: User, Group or ServicePrincipal",
+          "type": "string"
+        }
+      }
+    },
+    "RoleAssignmentDetailsList": {
+      "description": "Role Assignment response details",
+      "type": "object",
+      "properties": {
+        "count": {
+          "description": "Number of role assignments",
+          "type": "integer"
+        },
+        "value": {
+          "description": "A list of role assignments",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/RoleAssignmentDetails"
+          }
+        }
+      }
+    },
+    "RoleAssignmentDetails": {
+      "description": "Role Assignment response details",
+      "type": "object",
+      "properties": {
+        "id": {
+          "description": "Role Assignment ID",
+          "type": "string"
+        },
+        "roleDefinitionId": {
+          "description": "Role ID of the Synapse Built-In Role",
+          "format": "uuid",
+          "type": "string"
+        },
+        "principalId": {
+          "description": "Object ID of the AAD principal or security-group",
+          "format": "uuid",
+          "type": "string"
+        },
+        "scope": {
+          "description": "Scope at the role assignment is created",
+          "type": "string"
+        },
+        "principalType": {
+          "description": "Type of the principal Id: User, Group or ServicePrincipal",
+          "type": "string"
+        }
+      }
+    }
+  },
+  "parameters": {
+    "Endpoint": {
+      "name": "endpoint",
+      "description": "The workspace development endpoint, for example https://myworkspace.dev.azuresynapse.net.",
+      "required": true,
+      "type": "string",
+      "in": "path",
+      "x-ms-skip-url-encoding": true,
+      "x-ms-parameter-location": "client"
+    },
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "The Synapse client API Version."
+    },
+    "RoleIdParameter": {
+      "name": "roleId",
+      "in": "query",
+      "required": false,
+      "type": "string",
+      "description": "Synapse Built-In Role Id.",
+      "x-ms-parameter-location": "method"
+    },
+    "PrincipalIdParameter": {
+      "name": "principalId",
+      "in": "query",
+      "required": false,
+      "type": "string",
+      "description": "Object ID of the AAD principal or security-group.",
+      "x-ms-parameter-location": "method"
+    },
+    "RoleAssignmentIdParameter": {
+      "name": "roleAssignmentId",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "The ID of the role assignment.",
+      "minLength": 1,
+      "x-ms-parameter-location": "method"
+    },
+    "ScopeParameter": {
+      "name": "scope",
+      "in": "query",
+      "required": false,
+      "type": "string",
+      "description": "Scope of the Synapse Built-in Role.",
+      "x-ms-parameter-location": "method"
+    },
+    "XMsContinuationToken": {
+      "name": "x-ms-continuation",
+      "x-ms-client-name": "continuationToken",
+      "in": "header",
+      "required": false,
+      "type": "string",
+      "description": "Continuation token.",
+      "x-ms-parameter-location": "method"
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleDefinitions.json b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleDefinitions.json
new file mode 100644
index 000000000000..b4e68820be5c
--- /dev/null
+++ b/specification/synapse/data-plane/Microsoft.Synapse/preview/2020-08-01-preview/roleDefinitions.json
@@ -0,0 +1,272 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2020-08-01-preview",
+    "title": "AccessControlClient"
+  },
+  "x-ms-parameterized-host": {
+    "hostTemplate": "{endpoint}",
+    "useSchemePrefix": false,
+    "parameters": [
+      {
+        "$ref": "#/parameters/Endpoint"
+      }
+    ]
+  },
+  "schemes": [
+    "https"
+  ],
+  "paths": {
+    "/roleDefinitions": {
+      "get": {
+        "tags": [
+          "SynapseRoleDefinitions"
+        ],
+        "operationId": "RoleDefinitions_ListRoleDefinitions",
+        "description": "List role definitions.",
+        "x-ms-examples": {
+          "List role definitions": {
+            "$ref": "./examples/RoleDefinitions_ListRoleDefinitions.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/IsBuiltInParameter"
+          },
+          {
+            "$ref": "#/parameters/ScopeParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "$ref": "#/definitions/RoleDefinitionsListResponse"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "./roleAssignments.json#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    },
+    "/roleDefinitions/{roleDefinitionId}": {
+      "get": {
+        "tags": [
+          "SynapseRoleDefinitions"
+        ],
+        "operationId": "RoleDefinitions_GetRoleDefinitionById",
+        "description": "Get role definition by role definition Id.",
+        "x-ms-examples": {
+          "Get role definition information": {
+            "$ref": "./examples/RoleDefinitions_GetRoleDefinitionById.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/RoleDefinitionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "$ref": "#/definitions/SynapseRoleDefinition"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "./roleAssignments.json#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    },
+    "/rbacScopes": {
+      "get": {
+        "tags": [
+          "SynapseRbacScopes"
+        ],
+        "operationId": "RoleDefinitions_ListScopes",
+        "description": "List rbac scopes.",
+        "x-ms-examples": {
+          "List rbac scopes": {
+            "$ref": "./examples/RoleDefinitions_ListScopes.json"
+          }
+        },
+        "consumes": [],
+        "produces": [
+          "application/json",
+          "text/json"
+        ],
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Success response.",
+            "schema": {
+              "description": "A list of Synapse rbac scopes available.",
+              "type": "array",
+              "items": {
+                "description": "Synapse rbac scope.",
+                "type": "string"
+              }
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "./roleAssignments.json#/definitions/ErrorContract"
+            }
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "RoleDefinitionsListResponse": {
+      "description": "A list of Synapse roles available.",
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/SynapseRoleDefinition"
+      }
+    },
+    "SynapseRoleDefinition": {
+      "description": "Synapse role definition details",
+      "type": "object",
+      "properties": {
+        "id": {
+          "description": "Role Definition ID",
+          "format": "uuid",
+          "type": "string"
+        },
+        "name": {
+          "description": "Name of the Synapse role",
+          "type": "string"
+        },
+        "isBuiltIn": {
+          "description": "Is a built-in role or not",
+          "type": "boolean"
+        },
+        "description": {
+          "description": "Description for the Synapse role",
+          "type": "string"
+        },
+        "permissions": {
+          "description": "Permissions for the Synapse role",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/SynapseRbacPermission"
+          }
+        },
+        "scopes": {
+          "description": "Allowed scopes for the Synapse role",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "availabilityStatus": {
+          "description": "Availability of the Synapse role",
+          "type": "string"
+        }
+      }
+    },
+    "SynapseRbacPermission": {
+      "description": "Synapse role definition details",
+      "type": "object",
+      "properties": {
+        "actions": {
+          "description": "List of actions",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "notActions": {
+          "description": "List of Not actions",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "dataActions": {
+          "description": "List of data actions",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "notDataActions": {
+          "description": "List of Not data actions",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        }
+      }
+    }
+  },
+  "parameters": {
+    "Endpoint": {
+      "name": "endpoint",
+      "description": "The workspace development endpoint, for example https://myworkspace.dev.azuresynapse.net.",
+      "required": true,
+      "type": "string",
+      "in": "path",
+      "x-ms-skip-url-encoding": true,
+      "x-ms-parameter-location": "client"
+    },
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "The Synapse client API Version."
+    },
+    "RoleDefinitionIdParameter": {
+      "name": "roleDefinitionId",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "Synapse Built-In Role Definition Id.",
+      "x-ms-parameter-location": "method"
+    },
+    "IsBuiltInParameter": {
+      "name": "isBuiltIn",
+      "in": "query",
+      "required": false,
+      "type": "boolean",
+      "description": "Is a Synapse Built-In Role or not.",
+      "x-ms-parameter-location": "method"
+    },
+    "ScopeParameter": {
+      "name": "scope",
+      "in": "query",
+      "required": false,
+      "type": "string",
+      "description": "Scope of the Synapse Built-in Role.",
+      "x-ms-parameter-location": "method"
+    }
+  }
+}
diff --git a/specification/synapse/data-plane/readme.md b/specification/synapse/data-plane/readme.md
index afa6ec3bc6df..304b5141ede2 100644
--- a/specification/synapse/data-plane/readme.md
+++ b/specification/synapse/data-plane/readme.md
@@ -88,6 +88,17 @@ input-file:
 - Microsoft.Synapse/preview/2020-02-01-preview/roleAssignments.json
 ```
 
+### Tag: package-access-control-2020-08-01-preview
+
+These settings apply only when `--tag=package-access-control-2020-02-01-preview` is specified on the command line.
+
+``` yaml $(tag) == 'package-access-control-2020-08-01-preview'
+input-file:
+- Microsoft.Synapse/preview/2020-08-01-preview/checkAccessSynapseRbac.json
+- Microsoft.Synapse/preview/2020-08-01-preview/roleDefinitions.json
+- Microsoft.Synapse/preview/2020-08-01-preview/roleAssignments.json
+```
+
 ### Tag: package-vnet-2019-06-01-preview
 
 These settings apply only when `--tag=package-vnet-2019-06-01-preview` is specified on the command line