diff --git a/core/invehicle-digital-twin/src/main.rs b/core/invehicle-digital-twin/src/main.rs
index 0258c30a..6e88f4ea 100644
--- a/core/invehicle-digital-twin/src/main.rs
+++ b/core/invehicle-digital-twin/src/main.rs
@@ -84,7 +84,7 @@ async fn register_invehicle_digital_twin_service_with_chariott(
     Ok(())
 }
 
-/// Builds the enabled modules for the grpc server and starts the server.
+/// Builds the enabled modules for the app server and starts the app server.
 ///
 /// # Arguments
 /// * `addr` - The address the server will be hosted on.
@@ -98,7 +98,7 @@ async fn register_invehicle_digital_twin_service_with_chariott(
 /// 5. Call and return from the block `.add_module()` on the server with the updated middleware and
 /// module.
 #[allow(unused_assignments, unused_mut)] // Necessary when no extra modules are built.
-async fn build_server_and_serve<S>(
+async fn build_app_server_and_serve<S>(
     addr: SocketAddr,
     base_service: S,
 ) -> Result<(), Box<dyn std::error::Error>>
@@ -113,7 +113,7 @@ where
     let mut server: GrpcServer<Identity> = GrpcServer::new(addr);
 
     #[cfg(feature = "managed_subscribe")]
-    // Adds the Managed Subscribe module to the service.
+    // Adds the Managed Subscribe module to the app server.
     let mut server = {
         // Initialize the Managed Subscribe module, which implements GrpcModule.
         let managed_subscribe_module = ManagedSubscribeModule::new().await.map_err(|error| {
@@ -121,7 +121,7 @@ where
             error
         })?;
 
-        // Create interceptor layer to be added to the server.
+        // Create interceptor layer to be added to the app.
         let managed_subscribe_layer =
             GrpcInterceptorLayer::new(Box::new(managed_subscribe_module.create_interceptor()));
 
@@ -136,7 +136,7 @@ where
     };
 
     #[cfg(feature = "digital_twin_graph")]
-    // Adds the Digital Twin Graph module to the service.
+    // Adds the Digital Twin Graph module to the app server.
     let mut server = {
         // Initialize the Digital Twin Graph module, which implements GrpcModule.
         let digital_twin_graph_module = DigitalTwinGraphModule::new().await.map_err(|error| {
@@ -151,7 +151,7 @@ where
     };
 
     #[cfg(feature = "digital_twin_registry")]
-    // Adds the Digital Twin Registry module to the service.
+    // Adds the Digital Twin Registry module to the app server.
     let mut server = {
         // Initialize the Digital Twin Registry module, which implements GrpcModule.
         let digital_twin_registry_module =
@@ -166,10 +166,10 @@ where
         server.add_module(server.middleware.clone(), Box::new(digital_twin_registry_module))
     };
 
-    // Construct the server.
+    // Construct the app server.
     let builder = server.construct_server().add_service(base_service);
 
-    // Start the server.
+    // Start the app server.
     builder.serve(addr).await.map_err(|error| error.into())
 }
 
@@ -243,8 +243,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let base_service = InvehicleDigitalTwinServer::new(invehicle_digital_twin_impl);
 
-    // Build and start the grpc server.
-    build_server_and_serve(addr, base_service).await?;
+    // Build and start the app server.
+    build_app_server_and_serve(addr, base_service).await?;
 
     debug!("The Digital Twin Service has completed.");
 
diff --git a/core/module/digital_twin_graph/Cargo.toml b/core/module/digital_twin_graph/Cargo.toml
index efa00c52..9991eca8 100644
--- a/core/module/digital_twin_graph/Cargo.toml
+++ b/core/module/digital_twin_graph/Cargo.toml
@@ -16,6 +16,7 @@ serde = { workspace = true }
 serde_derive = { workspace = true }
 serde_json = { workspace = true }
 tokio = { workspace = true , features = ["full"] }
+tokio-retry = { workspace = true }
 tonic = { workspace = true }
 tower = { workspace = true }
 yaml-rust = { workspace = true }
diff --git a/core/module/digital_twin_graph/src/digital_twin_graph_config.rs b/core/module/digital_twin_graph/src/digital_twin_graph_config.rs
new file mode 100644
index 00000000..6abc51b6
--- /dev/null
+++ b/core/module/digital_twin_graph/src/digital_twin_graph_config.rs
@@ -0,0 +1,23 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+// SPDX-License-Identifier: MIT
+
+use common::utils;
+use serde_derive::Deserialize;
+
+const DEFAULT_CONFIG_FILENAME: &str = "digital_twin_graph_settings";
+
+#[derive(Debug, Deserialize)]
+pub struct Settings {
+    pub base_authority: String,
+}
+
+/// Load the settings.
+pub fn load_settings() -> Settings {
+    utils::load_settings(DEFAULT_CONFIG_FILENAME).unwrap()
+}
+
+/// Load the settings.
+pub fn load_settings_with_config_filename(config_filename: &str) -> Settings {
+    utils::load_settings(config_filename).unwrap()
+}
diff --git a/core/module/digital_twin_graph/src/digital_twin_graph_impl.rs b/core/module/digital_twin_graph/src/digital_twin_graph_impl.rs
index fbd23329..d15ffc6d 100644
--- a/core/module/digital_twin_graph/src/digital_twin_graph_impl.rs
+++ b/core/module/digital_twin_graph/src/digital_twin_graph_impl.rs
@@ -12,123 +12,147 @@ use core_protobuf_data_access::module::digital_twin_graph::v1::{
 };
 use core_protobuf_data_access::module::digital_twin_registry::v1::digital_twin_registry_client::DigitalTwinRegistryClient;
 use core_protobuf_data_access::module::digital_twin_registry::v1::{
-    EndpointInfo, FindByInstanceIdRequest, FindByModelIdRequest,
+    EndpointInfo, FindByInstanceIdRequest, FindByInstanceIdResponse, FindByModelIdRequest,
+    FindByModelIdResponse,
 };
 use log::{debug, info, warn};
 use std::sync::Arc;
 use tokio::sync::broadcast;
 use tokio::time::{sleep, timeout, Duration};
+use tokio_retry::strategy::{jitter, ExponentialBackoff};
+use tokio_retry::Retry;
 use uuid::Uuid;
 
 use crate::{digital_twin_operation, digital_twin_protocol, TargetedPayload};
 
 #[derive(Debug)]
 pub struct DigitalTwinGraphImpl {
-    invehicle_digital_twin_uri: String,
+    /// Digital Twin Registry URI.
+    digital_twin_registry_uri: String,
+    /// Respond URI.
     respond_uri: String,
+    /// The sender for the asynchronous channel for AnswerRequests.
     tx: Arc<broadcast::Sender<AnswerRequest>>,
 }
 
 impl DigitalTwinGraphImpl {
+    const BACKOFF_BASE_DURATION_IN_MILLIS: u64 = 100;
+    const MAX_RETRIES: usize = 100;
+    const TIMEOUT_PERIOD_IN_MILLIS: u64 = 5000;
+
     /// Create a new instance of a DigitalTwinGraphImpl.
     ///
     /// # Arguments
-    /// * `invehicle_digital_twin_uri` - The uri for the invehicle digital twin service.
+    /// * `digital_twin_registry_uri` - The uri for the digital twin registry service.
     /// * `respond_uri` - The uri for the respond service.
     /// * `tx` - The sender for the asynchronous channel for AnswerRequest's.
     pub fn new(
-        invehicle_digital_twin_uri: &str,
+        digital_twin_registry_uri: &str,
         respond_uri: &str,
         tx: Arc<broadcast::Sender<AnswerRequest>>,
     ) -> DigitalTwinGraphImpl {
         DigitalTwinGraphImpl {
-            invehicle_digital_twin_uri: invehicle_digital_twin_uri.to_string(),
+            digital_twin_registry_uri: digital_twin_registry_uri.to_string(),
             respond_uri: respond_uri.to_string(),
             tx,
         }
     }
-}
 
-/// Is the provided subset a subset of the provided superset?
-///
-/// # Arguments
-/// * `subset` - The provided subset.
-/// * `superset` - The provided superset.
-fn is_subset(subset: &[String], superset: &[String]) -> bool {
-    subset.iter().all(|subset_member| {
-        superset.iter().any(|supserset_member| subset_member == supserset_member)
-    })
-}
+    /// Is the provided subset a subset of the provided superset?
+    ///
+    /// # Arguments
+    /// * `subset` - The provided subset.
+    /// * `superset` - The provided superset.
+    fn is_subset(subset: &[String], superset: &[String]) -> bool {
+        subset.iter().all(|subset_member| {
+            superset.iter().any(|supserset_member| subset_member == supserset_member)
+        })
+    }
 
-/// Use Ibeji to discover the endpoints for digital twin providers that satisfy the requirements.
-///
-/// # Arguments
-/// * `digitial_twin_registry_service_uri` - Digital Twin Registry Service URI.
-/// * `model_id` - The matching model id.
-/// * `protocol` - The required protocol.
-/// * `operations` - The required operations.
-pub async fn discover_digital_twin_providers_with_model_id(
-    digitial_twin_registry_service_uri: &str,
-    model_id: &str,
-    protocol: &str,
-    operations: &[String],
-) -> Result<Vec<EndpointInfo>, String> {
-    info!("Sending a find_by_model_id request for model id {model_id} to the Digital Twin Registry Service at {digitial_twin_registry_service_uri}");
-
-    let mut client =
-        DigitalTwinRegistryClient::connect(digitial_twin_registry_service_uri.to_string())
-            .await
-            .map_err(|error| format!("{error}"))?;
-    let request = tonic::Request::new(FindByModelIdRequest { model_id: model_id.to_string() });
-    let response = client.find_by_model_id(request).await.map_err(|error| error.to_string())?;
-    let response_inner = response.into_inner();
-    debug!("Received the response for the find_by_model_id request");
-    info!("response_payload: {:?}", response_inner.entity_access_info_list);
-
-    Ok(response_inner
-        .entity_access_info_list
-        .iter()
-        .flat_map(|entity_access_info| entity_access_info.endpoint_info_list.clone())
-        .filter(|endpoint_info| {
-            endpoint_info.protocol == protocol && is_subset(operations, &endpoint_info.operations)
+    /// Use the Digital Twin Registery service to discover the endpoints for digital twin providers that support the specified model id, protocol and operations.
+    /// Note: This operation will be retried when there is a failure.
+    ///
+    /// # Arguments
+    /// * `model_id` - The matching model id.
+    /// * `protocol` - The required protocol.
+    /// * `operations` - The required operations.
+    pub async fn discover_digital_twin_providers_with_model_id(
+        &self,
+        model_id: &str,
+        protocol: &str,
+        operations: &[String],
+    ) -> Result<Vec<EndpointInfo>, String> {
+        let retry_strategy = ExponentialBackoff::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)
+            .map(jitter) // add jitter to delays
+            .take(Self::MAX_RETRIES);
+
+        let response: FindByModelIdResponse = Retry::spawn(retry_strategy.clone(), || async {
+            let mut client =
+                DigitalTwinRegistryClient::connect(self.digital_twin_registry_uri.to_string())
+                    .await
+                    .map_err(|error| format!("{error}"))?;
+
+            let request =
+                tonic::Request::new(FindByModelIdRequest { model_id: model_id.to_string() });
+
+            client.find_by_model_id(request).await.map_err(|error| error.to_string())
         })
-        .collect())
-}
+        .await?
+        .into_inner();
+
+        Ok(response
+            .entity_access_info_list
+            .iter()
+            .flat_map(|entity_access_info| entity_access_info.endpoint_info_list.clone())
+            .filter(|endpoint_info| {
+                endpoint_info.protocol == protocol
+                    && Self::is_subset(operations, &endpoint_info.operations)
+            })
+            .collect())
+    }
 
-/// Use Ibeji to discover the endpoints for digital twin providers that satisfy the requirements.
-///
-/// # Arguments
-/// * `digitial_twin_registry_service_uri` - Digital Twin Registry Service URI.
-/// * `instance_id` - The matching instance id.
-/// * `protocol` - The required protocol.
-/// * `operations` - The required operations.
-pub async fn discover_digital_twin_providers_with_instance_id(
-    digitial_twin_registry_service_uri: &str,
-    instance_id: &str,
-    protocol: &str,
-    operations: &[String],
-) -> Result<Vec<EndpointInfo>, String> {
-    info!("Sending a find_by_instance_id request for instance id {instance_id} to the Digital Twin Registry Service at {digitial_twin_registry_service_uri}");
-
-    let mut client =
-        DigitalTwinRegistryClient::connect(digitial_twin_registry_service_uri.to_string())
-            .await
-            .map_err(|error| format!("{error}"))?;
-    let request =
-        tonic::Request::new(FindByInstanceIdRequest { instance_id: instance_id.to_string() });
-    let response = client.find_by_instance_id(request).await.map_err(|error| error.to_string())?;
-    let response_inner = response.into_inner();
-    debug!("Received the response for the find_by_instance_id request");
-    info!("response_payload: {:?}", response_inner.entity_access_info_list);
-
-    Ok(response_inner
-        .entity_access_info_list
-        .iter()
-        .flat_map(|entity_access_info| entity_access_info.endpoint_info_list.clone())
-        .filter(|endpoint_info| {
-            endpoint_info.protocol == protocol && is_subset(operations, &endpoint_info.operations)
+    /// Use the Digital Twin Registry service to discover the endpoints for digital twin providers that support the specified instance id, protocol and operations.
+    /// Note: This operation will be retried when there is a failure.
+    ///
+    /// # Arguments
+    /// * `instance_id` - The matching instance id.
+    /// * `protocol` - The required protocol.
+    /// * `operations` - The required operations.
+    pub async fn discover_digital_twin_providers_with_instance_id(
+        &self,
+        instance_id: &str,
+        protocol: &str,
+        operations: &[String],
+    ) -> Result<Vec<EndpointInfo>, String> {
+        let retry_strategy = ExponentialBackoff::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)
+            .map(jitter) // add jitter to delays
+            .take(Self::MAX_RETRIES);
+
+        let response: FindByInstanceIdResponse = Retry::spawn(retry_strategy.clone(), || async {
+            let mut client =
+                DigitalTwinRegistryClient::connect(self.digital_twin_registry_uri.to_string())
+                    .await
+                    .map_err(|error| format!("{error}"))?;
+
+            let request = tonic::Request::new(FindByInstanceIdRequest {
+                instance_id: instance_id.to_string(),
+            });
+
+            client.find_by_instance_id(request).await.map_err(|error| error.to_string())
         })
-        .collect())
+        .await?
+        .into_inner();
+
+        Ok(response
+            .entity_access_info_list
+            .iter()
+            .flat_map(|entity_access_info| entity_access_info.endpoint_info_list.clone())
+            .filter(|endpoint_info| {
+                endpoint_info.protocol == protocol
+                    && Self::is_subset(operations, &endpoint_info.operations)
+            })
+            .collect())
+    }
 }
 
 #[tonic::async_trait]
@@ -144,19 +168,17 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
         let request_inner = request.into_inner();
         let model_id = request_inner.model_id;
 
-        info!("Received a find request for model id {model_id}");
+        debug!("Received a find request for model id {model_id}");
 
         // Retrieve the provider details.
-        let provider_endpoint_info_list = discover_digital_twin_providers_with_model_id(
-            &self.invehicle_digital_twin_uri,
-            model_id.as_str(),
-            digital_twin_protocol::GRPC,
-            &[digital_twin_operation::GET.to_string()],
-        )
-        .await
-        .map_err(tonic::Status::internal)?;
-
-        info!(">> Found the provider endpoint info list: {provider_endpoint_info_list:?}");
+        let provider_endpoint_info_list = self
+            .discover_digital_twin_providers_with_model_id(
+                model_id.as_str(),
+                digital_twin_protocol::GRPC,
+                &[digital_twin_operation::GET.to_string()],
+            )
+            .await
+            .map_err(tonic::Status::internal)?;
 
         let mut values = vec![];
 
@@ -196,15 +218,14 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
             // Send the ask.
             let response = client.ask(request).await;
             if let Err(status) = response {
-                warn!("Unable to call ask, due to {status:?}\nWe will skip this one..");
+                warn!("Unable to call ask, due to {status:?}\nWe will skip this one.");
                 continue;
             }
 
             // Wait for the answer request.
             let mut answer_request: AnswerRequest = Default::default();
             let mut attempts_after_failure = 0;
-            const MAX_ATTEMPTS_AFTER_FAILURE: u8 = 10;
-            while attempts_after_failure < MAX_ATTEMPTS_AFTER_FAILURE {
+            while attempts_after_failure < Self::MAX_RETRIES {
                 match timeout(Duration::from_secs(5), rx.recv()).await {
                     Ok(Ok(request)) => {
                         if ask_id == request.ask_id {
@@ -220,20 +241,20 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
                     }
                     Ok(Err(error_message)) => {
                         warn!("Failed to receive the answer request.  The error message is '{}'.  We will retry in a moment.", error_message);
-                        sleep(Duration::from_secs(1)).await;
+                        sleep(Duration::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)).await;
                         attempts_after_failure += 1;
                         continue;
                     }
                     Err(error_message) => {
                         warn!("Failed to receive the answer request.  The error message is '{}'.  We will retry in a moment.", error_message);
-                        sleep(Duration::from_secs(1)).await;
+                        sleep(Duration::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)).await;
                         attempts_after_failure += 1;
                         continue;
                     }
                 }
             }
 
-            info!(
+            debug!(
                 "Received an answer request.  The ask_id is '{}'. The payload is '{}'",
                 answer_request.ask_id, answer_request.payload
             );
@@ -241,6 +262,8 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
             values.push(answer_request.payload);
         }
 
+        debug!("Completed the find request");
+
         Ok(tonic::Response::new(FindResponse { values }))
     }
 
@@ -259,14 +282,14 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
         info!("Received a get request for instance id {instance_id}");
 
         // Retrieve the provider details.
-        let provider_endpoint_info_list = discover_digital_twin_providers_with_instance_id(
-            &self.invehicle_digital_twin_uri,
-            instance_id.as_str(),
-            digital_twin_protocol::GRPC,
-            &[digital_twin_operation::GET.to_string()],
-        )
-        .await
-        .map_err(tonic::Status::internal)?;
+        let provider_endpoint_info_list = self
+            .discover_digital_twin_providers_with_instance_id(
+                instance_id.as_str(),
+                digital_twin_protocol::GRPC,
+                &[digital_twin_operation::GET.to_string()],
+            )
+            .await
+            .map_err(tonic::Status::internal)?;
 
         info!("Found the provider endpoint info list: {provider_endpoint_info_list:?}");
 
@@ -308,16 +331,17 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
             // Send the ask.
             let response = client.ask(request).await;
             if let Err(status) = response {
-                warn!("Unable to call ask, due to {status:?}\nWe will skip this one..");
+                warn!("Unable to call ask, due to {status:?}\nWe will skip this one.");
                 continue;
             }
 
             // Wait for the answer request.
             let mut answer_request: AnswerRequest = Default::default();
             let mut attempts_after_failure = 0;
-            const MAX_ATTEMPTS_AFTER_FAILURE: u8 = 10;
-            while attempts_after_failure < MAX_ATTEMPTS_AFTER_FAILURE {
-                match timeout(Duration::from_secs(5), rx.recv()).await {
+            while attempts_after_failure < Self::MAX_RETRIES {
+                match timeout(Duration::from_millis(Self::TIMEOUT_PERIOD_IN_MILLIS), rx.recv())
+                    .await
+                {
                     Ok(Ok(request)) => {
                         if ask_id == request.ask_id {
                             // We have received the answer request that we are expecting.
@@ -332,13 +356,13 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
                     }
                     Ok(Err(error_message)) => {
                         warn!("Failed to receive the answer request.  The error message is '{}'.  We will retry in a moment.", error_message);
-                        sleep(Duration::from_secs(1)).await;
+                        sleep(Duration::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)).await;
                         attempts_after_failure += 1;
                         continue;
                     }
                     Err(error_message) => {
                         warn!("Failed to receive the answer request.  The error message is '{}'.  We will retry in a moment.", error_message);
-                        sleep(Duration::from_secs(1)).await;
+                        sleep(Duration::from_millis(Self::BACKOFF_BASE_DURATION_IN_MILLIS)).await;
                         attempts_after_failure += 1;
                         continue;
                     }
@@ -389,14 +413,14 @@ impl DigitalTwinGraph for DigitalTwinGraphImpl {
         info!("Received an invoke request for instance id {instance_id}");
 
         // Retrieve the provider details.
-        let provider_endpoint_info_list = discover_digital_twin_providers_with_instance_id(
-            &self.invehicle_digital_twin_uri,
-            instance_id.as_str(),
-            digital_twin_protocol::GRPC,
-            &[digital_twin_operation::INVOKE.to_string()],
-        )
-        .await
-        .map_err(tonic::Status::internal)?;
+        let provider_endpoint_info_list = self
+            .discover_digital_twin_providers_with_instance_id(
+                instance_id.as_str(),
+                digital_twin_protocol::GRPC,
+                &[digital_twin_operation::INVOKE.to_string()],
+            )
+            .await
+            .map_err(tonic::Status::internal)?;
 
         info!("Found the provider endpoint info list: {provider_endpoint_info_list:?}");
 
diff --git a/core/module/digital_twin_graph/src/digital_twin_graph_module.rs b/core/module/digital_twin_graph/src/digital_twin_graph_module.rs
index 6959aaac..d4e7c3d9 100644
--- a/core/module/digital_twin_graph/src/digital_twin_graph_module.rs
+++ b/core/module/digital_twin_graph/src/digital_twin_graph_module.rs
@@ -5,11 +5,11 @@
 use common::grpc_module::GrpcModule;
 use core_protobuf_data_access::async_rpc::v1::respond::respond_server::RespondServer;
 use core_protobuf_data_access::module::digital_twin_graph::v1::digital_twin_graph_server::DigitalTwinGraphServer;
-// use log::{debug, error, info};
 use std::sync::Arc;
 use tokio::sync::broadcast;
 use tonic::transport::server::RoutesBuilder;
 
+use crate::digital_twin_graph_config;
 use crate::digital_twin_graph_impl::DigitalTwinGraphImpl;
 use crate::respond_impl::RespondImpl;
 
@@ -30,11 +30,12 @@ impl GrpcModule for DigitalTwinGraphModule {
     /// # Arguments
     /// * `builder` - A tonic::RoutesBuilder that contains the grpc services to build.
     fn add_grpc_services(&self, builder: &mut RoutesBuilder) {
-        // Note: The authority is hardcoded for now, but it should be configurable in the future.
-        let invehicle_digital_twin_authority = "0.0.0.0:5010";
-        let invehicle_digital_twin_uri = format!("http://{invehicle_digital_twin_authority}"); // Devskim: ignore DS137138
-        let respond_authority = "0.0.0.0:5010";
-        let respond_uri = format!("http://{respond_authority}"); // Devskim: ignore DS137138
+        // Load the config.
+        let settings = digital_twin_graph_config::load_settings();
+        let base_authority = settings.base_authority;
+
+        let invehicle_digital_twin_uri = format!("http://{base_authority}"); // Devskim: ignore DS137138
+        let respond_uri = format!("http://{base_authority}"); // Devskim: ignore DS137138
 
         let (tx, _rx) = broadcast::channel(100);
         let tx = Arc::new(tx);
diff --git a/core/module/digital_twin_graph/src/lib.rs b/core/module/digital_twin_graph/src/lib.rs
index 030da7df..a17f09b7 100644
--- a/core/module/digital_twin_graph/src/lib.rs
+++ b/core/module/digital_twin_graph/src/lib.rs
@@ -2,6 +2,7 @@
 // Licensed under the MIT license.
 // SPDX-License-Identifier: MIT
 
+pub mod digital_twin_graph_config;
 pub mod digital_twin_graph_impl;
 pub mod digital_twin_graph_module;
 pub mod respond_impl;
diff --git a/core/module/digital_twin_graph/src/respond_impl.rs b/core/module/digital_twin_graph/src/respond_impl.rs
index 169bf9a5..d4e9494b 100644
--- a/core/module/digital_twin_graph/src/respond_impl.rs
+++ b/core/module/digital_twin_graph/src/respond_impl.rs
@@ -4,7 +4,7 @@
 
 use core_protobuf_data_access::async_rpc::v1::respond::respond_server::Respond;
 use core_protobuf_data_access::async_rpc::v1::respond::{AnswerRequest, AnswerResponse};
-use log::{debug, info};
+use log::debug;
 use std::sync::Arc;
 use tokio::sync::broadcast;
 
@@ -17,7 +17,7 @@ impl RespondImpl {
     /// Create a new instance of a RespondImpl.
     ///
     /// # Arguments
-    /// * `tx` - The sender for the asynchronous channel for AnswerRequest's.
+    /// * `tx` - The sender for the asynchronous channel for AnswerRequests.
     pub fn new(tx: Arc<broadcast::Sender<AnswerRequest>>) -> RespondImpl {
         RespondImpl { tx }
     }
@@ -33,14 +33,14 @@ impl Respond for RespondImpl {
         &self,
         request: tonic::Request<AnswerRequest>,
     ) -> Result<tonic::Response<AnswerResponse>, tonic::Status> {
-        info!("Received an answer request");
+        debug!("Received an answer request");
 
         let tx = Arc::clone(&self.tx);
 
         // Send the request to the channel.
         if let Err(err_msg) = tx.send(request.into_inner()) {
             return Err(tonic::Status::internal(format!(
-                "Failed to send the answer request due to {err_msg}"
+                "Failed to send the answer request due to: {err_msg}"
             )));
         }
 
diff --git a/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.puml b/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.puml
new file mode 100644
index 00000000..a8c43dd5
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.puml
@@ -0,0 +1,30 @@
+@startuml
+
+component "Digital Twin Consumer" {
+}
+
+component "Digital Twin App Server" {
+  component "Digital Twin Graph Service" {
+    interface "Digital Twin Graph Interface"
+    interface "Respond Interface" 
+  }
+  component "Digital Twin Registry Service" {
+    interface "Digital Twin Registry Interface"
+  }
+}
+
+component "Digital Twin Provider" {
+  interface "Request Interface"
+}
+
+"Digital Twin Provider" -left-> "Digital Twin Registry Interface" : Register
+
+"Digital Twin Consumer" -right-> "Digital Twin Graph Interface" : Find/Get/Set/Invoke
+
+"Digital Twin Graph Service" -down-> "Digital Twin Registry Interface": FindByModelId
+
+"Digital Twin Graph Service" -right-> "Request Interface": Ask
+
+"Digital Twin Provider" -left-> "Respond Interface": Answer
+
+@enduml
diff --git a/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.svg b/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.svg
new file mode 100644
index 00000000..f4d4ee8a
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/digital_twin_graph_component.svg
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="435px" preserveAspectRatio="none" style="width:852px;height:435px;" version="1.1" viewBox="0 0 852 435" width="852px" zoomAndPan="magnify"><defs><filter height="300%" id="fg3rp775jcujv" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><!--cluster Digital Twin App Server--><rect fill="#FFFFFF" filter="url(#fg3rp775jcujv)" height="400" style="stroke: #000000; stroke-width: 1.5;" width="520" x="22" y="24"/><rect fill="#FFFFFF" height="10" style="stroke: #000000; stroke-width: 1.5;" width="15" x="522" y="29"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="520" y="31"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="520" y="35"/><text fill="#000000" font-family="sans-serif" font-size="14" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="185" x="189.5" y="49.9951">Digital Twin App Server</text><!--cluster Digital Twin Graph Service--><rect fill="#FFFFFF" filter="url(#fg3rp775jcujv)" height="134" style="stroke: #000000; stroke-width: 1.5;" width="456" x="54" y="75"/><rect fill="#FFFFFF" height="10" style="stroke: #000000; stroke-width: 1.5;" width="15" x="490" y="80"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="488" y="82"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="488" y="86"/><text fill="#000000" font-family="sans-serif" font-size="14" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="208" x="178" y="100.9951">Digital Twin Graph Service</text><!--cluster Digital Twin Registry Service--><rect fill="#FFFFFF" filter="url(#fg3rp775jcujv)" height="118" style="stroke: #000000; stroke-width: 1.5;" width="250" x="268" y="282"/><rect fill="#FFFFFF" height="10" style="stroke: #000000; stroke-width: 1.5;" width="15" x="498" y="287"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="496" y="289"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="496" y="293"/><text fill="#000000" font-family="sans-serif" font-size="14" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="225" x="280.5" y="307.9951">Digital Twin Registry Service</text><!--cluster Digital Twin Provider--><rect fill="#FFFFFF" filter="url(#fg3rp775jcujv)" height="134" style="stroke: #000000; stroke-width: 1.5;" width="211" x="574" y="274"/><rect fill="#FFFFFF" height="10" style="stroke: #000000; stroke-width: 1.5;" width="15" x="765" y="279"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="763" y="281"/><rect fill="#FFFFFF" height="2" style="stroke: #000000; stroke-width: 1.5;" width="4" x="763" y="285"/><text fill="#000000" font-family="sans-serif" font-size="14" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="163" x="598" y="299.9951">Digital Twin Provider</text><!--entity Digital Twin Consumer--><rect fill="#FFFFFF" filter="url(#fg3rp775jcujv)" height="46.2969" style="stroke: #A80036; stroke-width: 1.5;" width="194" x="647" y="138"/><rect fill="#FFFFFF" height="10" style="stroke: #A80036; stroke-width: 1.5;" width="15" x="821" y="143"/><rect fill="#FFFFFF" height="2" style="stroke: #A80036; stroke-width: 1.5;" width="4" x="819" y="145"/><rect fill="#FFFFFF" height="2" style="stroke: #A80036; stroke-width: 1.5;" width="4" x="819" y="149"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="154" x="662" y="170.9951">Digital Twin Consumer</text><!--class Digital Twin Graph Interface--><rect fill="#FEFECE" filter="url(#fg3rp775jcujv)" height="48" id="Digital Twin Graph Interface" style="stroke: #A80036; stroke-width: 1.5;" width="206" x="280" y="137"/><ellipse cx="295" cy="153" fill="#B4A7E5" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M290.9219,148.7656 L290.9219,146.6094 L298.3125,146.6094 L298.3125,148.7656 L295.8438,148.7656 L295.8438,156.8438 L298.3125,156.8438 L298.3125,159 L290.9219,159 L290.9219,156.8438 L293.3906,156.8438 L293.3906,148.7656 L290.9219,148.7656 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="174" x="309" y="157.1543">Digital Twin Graph Interface</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="281" x2="485" y1="169" y2="169"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="281" x2="485" y1="177" y2="177"/><!--class Respond Interface--><rect fill="#FEFECE" filter="url(#fg3rp775jcujv)" height="48" id="Respond Interface" style="stroke: #A80036; stroke-width: 1.5;" width="147" x="97.5" y="137"/><ellipse cx="112.5" cy="153" fill="#B4A7E5" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M108.4219,148.7656 L108.4219,146.6094 L115.8125,146.6094 L115.8125,148.7656 L113.3438,148.7656 L113.3438,156.8438 L115.8125,156.8438 L115.8125,159 L108.4219,159 L108.4219,156.8438 L110.8906,156.8438 L110.8906,148.7656 L108.4219,148.7656 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="115" x="126.5" y="157.1543">Respond Interface</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="98.5" x2="243.5" y1="169" y2="169"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="98.5" x2="243.5" y1="177" y2="177"/><!--class Digital Twin Registry Interface--><rect fill="#FEFECE" filter="url(#fg3rp775jcujv)" height="48" id="Digital Twin Registry Interface" style="stroke: #A80036; stroke-width: 1.5;" width="218" x="284" y="336"/><ellipse cx="299" cy="352" fill="#B4A7E5" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M294.9219,347.7656 L294.9219,345.6094 L302.3125,345.6094 L302.3125,347.7656 L299.8438,347.7656 L299.8438,355.8438 L302.3125,355.8438 L302.3125,358 L294.9219,358 L294.9219,355.8438 L297.3906,355.8438 L297.3906,347.7656 L294.9219,347.7656 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="186" x="313" y="356.1543">Digital Twin Registry Interface</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="285" x2="501" y1="368" y2="368"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="285" x2="501" y1="376" y2="376"/><!--class Request Interface--><rect fill="#FEFECE" filter="url(#fg3rp775jcujv)" height="48" id="Request Interface" style="stroke: #A80036; stroke-width: 1.5;" width="144" x="598" y="336"/><ellipse cx="613" cy="352" fill="#B4A7E5" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M608.9219,347.7656 L608.9219,345.6094 L616.3125,345.6094 L616.3125,347.7656 L613.8438,347.7656 L613.8438,355.8438 L616.3125,355.8438 L616.3125,358 L608.9219,358 L608.9219,355.8438 L611.3906,355.8438 L611.3906,347.7656 L608.9219,347.7656 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="112" x="627" y="356.1543">Request Interface</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="599" x2="741" y1="368" y2="368"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="599" x2="741" y1="376" y2="376"/><!--link Digital Twin Registry Interface to Digital Twin Provider--><path d="M417.04,331.74 C440.39,306.66 478.35,271.77 520,257 C546.42,247.63 720.68,226.82 758,258 C762.2163,261.5225 765.6975,265.6534 768.559,270.1978 C769.2744,271.3339 769.9511,272.4959 770.5908,273.6806 " fill="none" id="Digital Twin Registry Interface-Digital Twin Provider" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="413.42,335.68,422.4543,331.758,416.8025,331.9978,416.5627,326.346,413.42,335.68" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="52" x="521" y="246.0669">Register</text><!--link Digital Twin Consumer to Digital Twin Graph Interface--><path d="M646.74,161 C598.81,161 540.86,161 491.5,161 " fill="none" id="Digital Twin Consumer-Digital Twin Graph Interface" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="486.45,161,495.45,165,491.45,161,495.45,157,486.45,161" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="124" x="504.5" y="154.0669">Find/Get/Set/Invoke</text><!--link Digital Twin Graph Service to Digital Twin Registry Interface--><path d="M71.1109,209.0999 C71.4723,209.9264 71.848,210.747 72.2386,211.5598 C73.0198,213.1856 73.8606,214.7807 74.7654,216.3316 C76.5752,219.4334 78.6413,222.3588 81,225 C132.29,282.42 212.44,316.13 278.67,335.37 " fill="none" id="Digital Twin Graph Service-Digital Twin Registry Interface" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="283.81,336.85,276.2726,330.5107,279.0062,335.4632,274.0537,338.1968,283.81,336.85" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="91" x="102" y="246.0669">FindByModelId</text><!--link Digital Twin Graph Service to Request Interface--><path d="M68.8687,209.2558 C68.9151,209.3563 68.9618,209.4565 69.0088,209.5567 C69.1968,209.9571 69.3895,210.3551 69.5869,210.7502 C69.9818,211.5404 70.3959,212.3195 70.83,213.0852 C71.6982,214.6168 72.6466,216.0953 73.6822,217.5046 C75.7534,220.3233 78.1738,222.865 81,225 C103.21,241.78 557.42,219.93 582,233 C621.25,253.86 646.68,300.93 659.66,331.26 " fill="none" id="Digital Twin Graph Service-Request Interface" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="661.63,335.98,661.85,326.1336,659.7019,331.3667,654.4687,329.2186,661.63,335.98" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="23" x="606" y="246.0669">Ask</text><!--link Respond Interface to Digital Twin Provider--><path d="M199.99,188.69 C216.78,202.34 239.07,217.6 262,225 C306.63,239.41 637.8,224.96 684,233 C718.2,238.95 735.23,231.8 758,258 C761.6863,262.2425 764.753,266.9702 767.2968,271.9993 C767.6148,272.628 767.9246,273.2613 768.2264,273.8991 " fill="none" id="Respond Interface-Digital Twin Provider" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="195.85,185.26,200.2259,194.0833,199.6993,188.4511,205.3316,187.9245,195.85,185.26" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="751" y="246.0669">Answer</text><!--
+@startuml
+
+component "Digital Twin Consumer" {
+}
+
+component "Digital Twin App Server" {
+  component "Digital Twin Graph Service" {
+    interface "Digital Twin Graph Interface"
+    interface "Respond Interface" 
+  }
+  component "Digital Twin Registry Service" {
+    interface "Digital Twin Registry Interface"
+  }
+}
+
+component "Digital Twin Provider" {
+  interface "Request Interface"
+}
+
+"Digital Twin Provider" -left-> "Digital Twin Registry Interface" : Register
+
+"Digital Twin Consumer" -right-> "Digital Twin Graph Interface" : Find/Get/Set/Invoke
+
+"Digital Twin Graph Service" -down-> "Digital Twin Registry Interface": FindByModelId
+
+"Digital Twin Graph Service" -right-> "Request Interface": Ask
+
+"Digital Twin Provider" -left-> "Respond Interface": Answer
+
+@enduml
+
+PlantUML version 1.2018.13(Mon Nov 26 09:11:51 PST 2018)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Java Version: 11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+Operating System: Linux
+OS Version: 5.4.0-177-generic
+Default Encoding: UTF-8
+Language: en
+Country: US
+--></g></svg>
\ No newline at end of file
diff --git a/docs/design/modules/digital_twin_graph/diagrams/find_sequence.puml b/docs/design/modules/digital_twin_graph/diagrams/find_sequence.puml
new file mode 100644
index 00000000..4a9f01fb
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/find_sequence.puml
@@ -0,0 +1,30 @@
+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Find(model_id: "dtmi:sdv:vehicle;1") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByModeld(model_id: "dtmi:sdv:vehcile;1") - request
+note right
+end note
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByModelId - response
+note left
+end note
+
+loop Iterate over the results from the FindByModelId call
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+end
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Find - response
+note left
+end note
+
+@enduml
diff --git a/docs/design/modules/digital_twin_graph/diagrams/find_sequence.svg b/docs/design/modules/digital_twin_graph/diagrams/find_sequence.svg
new file mode 100644
index 00000000..fb6ee844
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/find_sequence.svg
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="362px" preserveAspectRatio="none" style="width:1073px;height:362px;" version="1.1" viewBox="0 0 1073 362" width="1073px" zoomAndPan="magnify"><defs><filter height="300%" id="fautk7t4kv9wd" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><rect fill="#FFFFFF" filter="url(#fautk7t4kv9wd)" height="133.6641" style="stroke: #000000; stroke-width: 2.0;" width="723" x="339" y="142.6953"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="94" x2="94" y1="38.2969" y2="322.4922"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="420" x2="420" y1="38.2969" y2="322.4922"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="808" x2="808" y1="38.2969" y2="322.4922"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="974" x2="974" y1="38.2969" y2="322.4922"/><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="168" x="8" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="154" x="15" y="22.9951">Digital Twin Consumer</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="168" x="8" y="321.4922"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="154" x="15" y="341.4873">Digital Twin Consumer</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="349" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="124" x="356" y="22.9951">Digital Twin Graph</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="349" y="321.4922"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="124" x="356" y="341.4873">Digital Twin Graph</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="730" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="737" y="22.9951">Digital Twin Registry</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="730" y="321.4922"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="737" y="341.4873">Digital Twin Registry</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="896" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="903" y="22.9951">Digital Twin Provider</text><rect fill="#FEFECE" filter="url(#fautk7t4kv9wd)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="896" y="321.4922"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="903" y="341.4873">Digital Twin Provider</text><polygon fill="#A80036" points="408,65.4297,418,69.4297,408,73.4297,412,69.4297" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="94" x2="414" y1="69.4297" y2="69.4297"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="101" y="64.3638">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="289" x="114" y="64.3638">Find(model_id: "dtmi:sdv:vehicle;1") - request</text><polygon fill="#A80036" points="796,94.5625,806,98.5625,796,102.5625,800,98.5625" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="420" x2="802" y1="98.5625" y2="98.5625"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="427" y="93.4966">2</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="351" x="440" y="93.4966">FindByModeld(model_id: "dtmi:sdv:vehcile;1") - request</text><path d="M813,84.9961 L813,94.9961 L834,94.9961 L834,94.9961 L824,84.9961 L813,84.9961 " fill="#FBFB77" filter="url(#fautk7t4kv9wd)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M824,84.9961 L824,94.9961 L834,94.9961 L824,84.9961 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="431,123.6953,421,127.6953,431,131.6953,427,127.6953" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="425" x2="807" y1="127.6953" y2="127.6953"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="437" y="122.6294">3</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="163" x="450" y="122.6294">FindByModelId - response</text><path d="M390,114.1289 L390,124.1289 L411,124.1289 L411,124.1289 L401,114.1289 L390,114.1289 " fill="#FBFB77" filter="url(#fautk7t4kv9wd)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M401,114.1289 L401,124.1289 L411,124.1289 L401,114.1289 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M339,142.6953 L416,142.6953 L416,149.6953 L406,159.6953 L339,159.6953 L339,142.6953 " fill="#EEEEEE" style="stroke: #000000; stroke-width: 1.0;"/><rect fill="none" height="133.6641" style="stroke: #000000; stroke-width: 2.0;" width="723" x="339" y="142.6953"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="32" x="354" y="155.7622">loop</text><text fill="#000000" font-family="sans-serif" font-size="11" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="342" x="431" y="154.9058">[Iterate over the results from the FindByModelId call]</text><polygon fill="#A80036" points="962,176.9609,972,180.9609,962,184.9609,966,180.9609" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="420" x2="968" y1="180.9609" y2="180.9609"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="427" y="175.895">4</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="59" x="440" y="175.895">Ask - Get</text><polygon fill="#A80036" points="962,206.0938,972,210.0938,962,214.0938,966,210.0938" style="stroke: #A80036; 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stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="425" x2="973" y1="268.3594" y2="268.3594"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="437" y="263.2935">7</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="450" y="263.2935">Answer</text><polygon fill="#A80036" points="105,300.4922,95,304.4922,105,308.4922,101,304.4922" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="99" x2="419" y1="304.4922" y2="304.4922"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="111" y="299.4263">8</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="98" x="124" y="299.4263">Find - response</text><path d="M64,290.9258 L64,300.9258 L85,300.9258 L85,300.9258 L75,290.9258 L64,290.9258 " fill="#FBFB77" filter="url(#fautk7t4kv9wd)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M75,290.9258 L75,300.9258 L85,300.9258 L75,290.9258 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><!--
+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Find(model_id: "dtmi:sdv:vehicle;1") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByModeld(model_id: "dtmi:sdv:vehcile;1") - request
+note right
+end note
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByModelId - response
+note left
+end note
+
+loop Iterate over the results from the FindByModelId call
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+end
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Find - response
+note left
+end note
+
+@enduml
+
+PlantUML version 1.2018.13(Mon Nov 26 09:11:51 PST 2018)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Java Version: 11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+Operating System: Linux
+OS Version: 5.4.0-177-generic
+Default Encoding: UTF-8
+Language: en
+Country: US
+--></g></svg>
\ No newline at end of file
diff --git a/docs/design/modules/digital_twin_graph/diagrams/get_sequence.puml b/docs/design/modules/digital_twin_graph/diagrams/get_sequence.puml
new file mode 100644
index 00000000..71181723
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/get_sequence.puml
@@ -0,0 +1,21 @@
+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Get(instance_id: "1234567890", member_path: "vehicle_identification") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByInstanceId(instance_id: "1234567890") - request
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByInstanceId - response
+
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Get - response
+
+@enduml
diff --git a/docs/design/modules/digital_twin_graph/diagrams/get_sequence.svg b/docs/design/modules/digital_twin_graph/diagrams/get_sequence.svg
new file mode 100644
index 00000000..319a00e1
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/get_sequence.svg
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="273px" preserveAspectRatio="none" style="width:1282px;height:273px;" version="1.1" viewBox="0 0 1282 273" width="1282px" zoomAndPan="magnify"><defs><filter height="300%" id="fqxlifist7zhs" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="94" x2="94" y1="38.2969" y2="233.0938"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="645" x2="645" y1="38.2969" y2="233.0938"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="1031" x2="1031" y1="38.2969" y2="233.0938"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 5.0,5.0;" x1="1197" x2="1197" y1="38.2969" y2="233.0938"/><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="168" x="8" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="154" x="15" y="22.9951">Digital Twin Consumer</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="168" x="8" y="232.0938"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="154" x="15" y="252.0889">Digital Twin Consumer</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="574" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="124" x="581" y="22.9951">Digital Twin Graph</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="138" x="574" y="232.0938"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="124" x="581" y="252.0889">Digital Twin Graph</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="953" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="960" y="22.9951">Digital Twin Registry</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="953" y="232.0938"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="960" y="252.0889">Digital Twin Registry</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="1119" y="3"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="1126" y="22.9951">Digital Twin Provider</text><rect fill="#FEFECE" filter="url(#fqxlifist7zhs)" height="30.2969" style="stroke: #A80036; stroke-width: 1.5;" width="152" x="1119" y="232.0938"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="138" x="1126" y="252.0889">Digital Twin Provider</text><polygon fill="#A80036" points="633,65.4297,643,69.4297,633,73.4297,637,69.4297" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="94" x2="639" y1="69.4297" y2="69.4297"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="101" y="64.3638">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="514" x="114" y="64.3638">Get(instance_id: "1234567890", member_path: "vehicle_identification") - request</text><polygon fill="#A80036" points="1019,94.5625,1029,98.5625,1019,102.5625,1023,98.5625" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="645" x2="1025" y1="98.5625" y2="98.5625"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="652" y="93.4966">2</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="349" x="665" y="93.4966">FindByInstanceId(instance_id: "1234567890") - request</text><polygon fill="#A80036" points="656,123.6953,646,127.6953,656,131.6953,652,127.6953" style="stroke: #A80036; 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stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="650" x2="1196" y1="185.9609" y2="185.9609"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="662" y="180.895">5</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="675" y="180.895">Answer</text><polygon fill="#A80036" points="105,211.0938,95,215.0938,105,219.0938,101,215.0938" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="99" x2="644" y1="215.0938" y2="215.0938"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="9" x="111" y="210.0278">6</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="95" x="124" y="210.0278">Get - response</text><!--
+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Get(instance_id: "1234567890", member_path: "vehicle_identification") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByInstanceId(instance_id: "1234567890") - request
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByInstanceId - response
+
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - Get
+
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Get - response
+
+@enduml
+
+PlantUML version 1.2018.13(Mon Nov 26 09:11:51 PST 2018)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Java Version: 11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+Operating System: Linux
+OS Version: 5.4.0-177-generic
+Default Encoding: UTF-8
+Language: en
+Country: US
+--></g></svg>
\ No newline at end of file
diff --git a/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.puml b/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.puml
new file mode 100644
index 00000000..6d9148d9
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.puml
@@ -0,0 +1,20 @@
+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Invoke(instance_id: "1234567890", payload: "") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByInstanceId(id: "1234567890") - request
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByInstanceId - response
+
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - request
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Invoke - response
+
+@enduml
diff --git a/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.svg b/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.svg
new file mode 100644
index 00000000..29744015
--- /dev/null
+++ b/docs/design/modules/digital_twin_graph/diagrams/invoke_sequence.svg
@@ -0,0 +1,33 @@
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+@startuml
+
+autonumber
+
+participant "Digital Twin Consumer" as CONSUMER
+participant "Digital Twin Graph" as DIGITAL_TWIN_GRAPH
+participant "Digital Twin Registry" as DIGITAL_TWIN_REGISTRY
+participant "Digital Twin Provider" as PROVIDER
+
+CONSUMER -> DIGITAL_TWIN_GRAPH: Invoke(instance_id: "1234567890", payload: "") - request
+
+DIGITAL_TWIN_GRAPH -> DIGITAL_TWIN_REGISTRY: FindByInstanceId(id: 1234567890") - request
+DIGITAL_TWIN_GRAPH <- DIGITAL_TWIN_REGISTRY: FindByInstanceId - response
+
+DIGITAL_TWIN_GRAPH -> PROVIDER: Ask - request
+DIGITAL_TWIN_GRAPH <- PROVIDER: Answer
+
+CONSUMER <- DIGITAL_TWIN_GRAPH: Invoke - response
+
+@enduml
+
+PlantUML version 1.2018.13(Mon Nov 26 09:11:51 PST 2018)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Java Version: 11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+Operating System: Linux
+OS Version: 5.4.0-177-generic
+Default Encoding: UTF-8
+Language: en
+Country: US
+--></g></svg>
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