diff --git a/lang/cs/Org.Apache.REEF.Common/Api/AbstractFailure.cs b/lang/cs/Org.Apache.REEF.Common/Api/AbstractFailure.cs
index aa9582976b..cb1ac2a814 100644
--- a/lang/cs/Org.Apache.REEF.Common/Api/AbstractFailure.cs
+++ b/lang/cs/Org.Apache.REEF.Common/Api/AbstractFailure.cs
@@ -101,7 +101,7 @@ public AbstractFailure(string id, string message, string description)
         /// <summary>
         /// Identifier of the entity that produced the error. Cannot be null.
         /// </summary>
-        public string Id { get; set; }
+        public string Id { get; private set; }
 
         public string Message { get; set; }
 
diff --git a/lang/cs/Org.Apache.REEF.Common/Exceptions/EvaluatorException.cs b/lang/cs/Org.Apache.REEF.Common/Exceptions/EvaluatorException.cs
index 9cb207ac0e..319b4f29b1 100644
--- a/lang/cs/Org.Apache.REEF.Common/Exceptions/EvaluatorException.cs
+++ b/lang/cs/Org.Apache.REEF.Common/Exceptions/EvaluatorException.cs
@@ -69,7 +69,6 @@ public EvaluatorException(string evaluatorId, Exception cause, IRunningTask runn
         public string Id
         {
             get { return _evaluatorId; }
-            set { }
         }
     }
 }
diff --git a/lang/cs/Org.Apache.REEF.Common/Exceptions/JobException.cs b/lang/cs/Org.Apache.REEF.Common/Exceptions/JobException.cs
index 643cd76fb7..8675be3a64 100644
--- a/lang/cs/Org.Apache.REEF.Common/Exceptions/JobException.cs
+++ b/lang/cs/Org.Apache.REEF.Common/Exceptions/JobException.cs
@@ -52,7 +52,6 @@ public JobException(string jobId, Exception cause)
         public string Id
         {
             get { return _jobId; }
-            set { }
         }
     }
 }
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ActiveContext.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ActiveContext.cs
index 917e95ad9b..a5fe63bf6f 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ActiveContext.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ActiveContext.cs
@@ -52,10 +52,6 @@ public string Id
             {
                 return Clr2Java.GetId();
             }
-
-            set
-            {
-            }
         }
 
         public string EvaluatorId
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/AllocatedEvaluator.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/AllocatedEvaluator.cs
index c14960f0af..f7889eb1e3 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/AllocatedEvaluator.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/AllocatedEvaluator.cs
@@ -62,7 +62,7 @@ public AllocatedEvaluator(IAllocatedEvaluaotrClr2Java clr2Java, ISet<IConfigurat
         [DataMember]
         public string InstanceId { get; set; }
 
-        public string Id { get; set; }
+        public string Id { get; private set; }
 
         public string EvaluatorBatchId { get; set; }
 
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ClosedContext.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ClosedContext.cs
index 4b81c6cbef..2aca0d2ced 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ClosedContext.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ClosedContext.cs
@@ -48,10 +48,6 @@ public string Id
             {
                 return _id;
             }
-
-            set
-            {
-            }
         }
 
         public string EvaluatorId
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedEvaluator.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedEvaluator.cs
index 096599a32c..e38bb75d04 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedEvaluator.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedEvaluator.cs
@@ -49,10 +49,6 @@ public string Id
             {
                 return CompletedEvaluatorClr2Java.GetId();
             }
-
-            set
-            {
-            }
         }
 
         [DataMember]
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedTask.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedTask.cs
index 3fb76b2dd1..6617b97485 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedTask.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/CompletedTask.cs
@@ -49,10 +49,6 @@ public string Id
             {
                 return CompletedTaskClr2Java.GetId();
             }
-
-            set
-            {
-            }
         }
 
         public IActiveContext ActiveContext
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ContextMessage.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ContextMessage.cs
index afebc595c0..d776bf7c9d 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ContextMessage.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/ContextMessage.cs
@@ -38,7 +38,6 @@ public ContextMessage(IContextMessageClr2Java clr2Java)
         public string Id
         {
             get { return _id; }
-            set { }
         }
 
         public string MessageSourceId
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedContext.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedContext.cs
index f3bd4ba39e..0fe8819366 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedContext.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedContext.cs
@@ -46,10 +46,6 @@ public string Id
             {
                 return _id;
             }
-
-            set
-            {
-            }
         }
 
         public string EvaluatorId
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedEvaluator.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedEvaluator.cs
index a63f953f69..4feec3f530 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedEvaluator.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedEvaluator.cs
@@ -46,7 +46,7 @@ public FailedEvaluator(IFailedEvaluatorClr2Java clr2Java)
         [DataMember]
         public string InstanceId { get; set; }
 
-        public string Id { get; set; }
+        public string Id { get; private set; }
 
         public EvaluatorException EvaluatorException { get; set; }
 
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedTask.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedTask.cs
index 119ec9836a..28be1afa9a 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedTask.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/FailedTask.cs
@@ -46,7 +46,7 @@ public FailedTask(IFailedTaskClr2Java failedTaskClr2Java)
         [DataMember]
         public string InstanceId { get; set; }
 
-        public string Id { get; set; }
+        public string Id { get; private set; }
 
         public string Message { get; set; }
 
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/RunningTask.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/RunningTask.cs
index 12e59d17c7..b6f6a5ca1a 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/RunningTask.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/RunningTask.cs
@@ -58,11 +58,6 @@ public string Id
             {
                 return _runningTaskClr2Java.GetId();
             }
-
-            set
-            {
-                Id = value;
-            }
         }
 
         public void Send(byte[] message)
diff --git a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/SuspendedTask.cs b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/SuspendedTask.cs
index a694289ba2..3a9415c2c4 100644
--- a/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/SuspendedTask.cs
+++ b/lang/cs/Org.Apache.REEF.Driver/Bridge/Events/SuspendedTask.cs
@@ -56,10 +56,6 @@ public string Id
             {
                 return SuspendedTaskClr2Java.GetId();
             }
-
-            set
-            {
-            }
         }
 
         public IActiveContext ActiveContext
diff --git a/lang/cs/Org.Apache.REEF.Utilities/IIdentifiable.cs b/lang/cs/Org.Apache.REEF.Utilities/IIdentifiable.cs
index 532349c43e..a6c2e34271 100644
--- a/lang/cs/Org.Apache.REEF.Utilities/IIdentifiable.cs
+++ b/lang/cs/Org.Apache.REEF.Utilities/IIdentifiable.cs
@@ -19,8 +19,14 @@
 
 namespace Org.Apache.REEF.Utilities
 {
+    /// <summary>
+    /// Denotes an object that has a string identifier.
+    /// </summary>
     public interface IIdentifiable
     {
-        string Id { get; set; }
+        /// <summary>
+        /// The Id of this object, e.g. the TaskId.
+        /// </summary>
+        string Id { get;}
     }
 }
\ No newline at end of file