diff --git a/src/Moryx.AbstractionLayer/Activities/Activity.cs b/src/Moryx.AbstractionLayer/Activities/Activity.cs
index aaaec6ce6..875d3bd54 100644
--- a/src/Moryx.AbstractionLayer/Activities/Activity.cs
+++ b/src/Moryx.AbstractionLayer/Activities/Activity.cs
@@ -36,7 +36,7 @@ public abstract class Activity : IActivity
         public IProcess Process { get; set; }
 
         ///
-        public IActivityTracing Tracing { get; set; }
+        public Tracing Tracing { get; set; }
 
         ///
         public ActivityResult Result { get; set; }
@@ -103,7 +103,7 @@ public override string ToString()
     /// <typeparam name="TTracing">Type of the tracing object.</typeparam>
     public abstract class Activity<TParam, TTracing> : Activity, IActivity<TParam>
         where TParam : IParameters
-        where TTracing : IActivityTracing, new()
+        where TTracing : Tracing, new()
     {
         /// <summary>
         /// Creates a new instance of <see cref="Activity{TParam,TTracing}"/>
diff --git a/src/Moryx.AbstractionLayer/Activities/IActivity.cs b/src/Moryx.AbstractionLayer/Activities/IActivity.cs
index 5ee957d3f..e8c749132 100644
--- a/src/Moryx.AbstractionLayer/Activities/IActivity.cs
+++ b/src/Moryx.AbstractionLayer/Activities/IActivity.cs
@@ -29,7 +29,7 @@ public interface IActivity : IDisposable
         /// <summary>
         /// All activity trace information
         /// </summary>
-        IActivityTracing Tracing { get; }
+        Tracing Tracing { get; }
 
         /// <summary>
         /// Specifies the special process requirements of this type
diff --git a/src/Moryx.AbstractionLayer/Activities/IActivityProgress.cs b/src/Moryx.AbstractionLayer/Activities/IActivityProgress.cs
deleted file mode 100644
index 510c095ed..000000000
--- a/src/Moryx.AbstractionLayer/Activities/IActivityProgress.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2020, Phoenix Contact GmbH & Co. KG
-// Licensed under the Apache License, Version 2.0
-
-namespace Moryx.AbstractionLayer
-{
-    /// <summary>
-    /// Typed interface for the activity progress
-    /// </summary>
-    public interface IActivityProgress : IActivityTracing
-    {
-        /// <summary>
-        /// Relative progress in per-cent as value between 0 and 100
-        /// </summary>
-        double Relative { get; }
-    }
-}
diff --git a/src/Moryx.AbstractionLayer/Activities/IActivityTracing.cs b/src/Moryx.AbstractionLayer/Activities/IActivityTracing.cs
deleted file mode 100644
index f8e3fb54f..000000000
--- a/src/Moryx.AbstractionLayer/Activities/IActivityTracing.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2020, Phoenix Contact GmbH & Co. KG
-// Licensed under the Apache License, Version 2.0
-
-using System;
-
-namespace Moryx.AbstractionLayer
-{
-    /// <summary>
-    /// Interface for activity trace information
-    /// </summary>
-    public interface IActivityTracing
-    {
-        /// <summary>
-        /// The time when this activity was started.
-        /// </summary>
-        DateTime? Started { get; set; }
-
-        /// <summary>
-        /// The time when this activity was finished.
-        /// </summary>
-        DateTime? Completed { get; set;  }
-
-        /// <summary>
-        /// Contains the error code that is associated with the error that caused e.g. an activity failure
-        /// </summary>
-        int ErrorCode { get; set; }
-
-        /// <summary>
-        /// Optional tracing text for errors or information
-        /// </summary>
-        string Text { get; set; }
-
-        /// <summary>
-        /// Transform the current tracing type to the value of <typeparamref name="T"/>
-        /// </summary>
-        /// <typeparam name="T">Type the <see cref="IActivityTracing" /> is transformed to</typeparam>
-        /// <returns>
-        /// Transformed object
-        /// </returns>
-        T Transform<T>() where T : class, IActivityTracing, new();
-    }
-}
diff --git a/src/Moryx.AbstractionLayer/Activities/Tracing.cs b/src/Moryx.AbstractionLayer/Activities/Tracing.cs
index 3bca64657..ba9c3d8a6 100644
--- a/src/Moryx.AbstractionLayer/Activities/Tracing.cs
+++ b/src/Moryx.AbstractionLayer/Activities/Tracing.cs
@@ -11,18 +11,26 @@ namespace Moryx.AbstractionLayer
     /// Activity trace information
     /// </summary>
     [DataContract]
-    public class Tracing : IActivityTracing
+    public class Tracing
     {
-        /// <inheritdoc />
+        /// <summary>
+        /// The time when this activity was started.
+        /// </summary>
         public DateTime? Started { get; set; }
 
-        /// <inheritdoc />
+        /// <summary>
+        /// The time when this activity was finished.
+        /// </summary>
         public DateTime? Completed { get; set; }
 
-        /// <inheritdoc />
+        /// <summary>
+        /// Optional tracing text for errors or information
+        /// </summary>
         public string Text { get; set; }
 
-        /// <inheritdoc />
+        /// <summary>
+        /// Contains the error code that is associated with the error that caused e.g. an activity failure
+        /// </summary>
         public int ErrorCode { get; set; }
 
         /// <summary>
@@ -33,7 +41,7 @@ public class Tracing : IActivityTracing
         ///
         // ReSharper disable once InconsistentNaming <-- too cool to rename :P
         public Sparta Transform<Sparta>() where Sparta
-            : class, IActivityTracing, new()
+            : Tracing, new()
         {
             if (this is Sparta)
                 return this as Sparta;
diff --git a/src/Moryx.AbstractionLayer/Activities/TracingExtension.cs b/src/Moryx.AbstractionLayer/Activities/TracingExtension.cs
index 776dc8636..a7ea40c37 100644
--- a/src/Moryx.AbstractionLayer/Activities/TracingExtension.cs
+++ b/src/Moryx.AbstractionLayer/Activities/TracingExtension.cs
@@ -10,7 +10,7 @@ public static class TracingExtension
         /// <summary>
         /// Transform tracing type on activity
         /// </summary>
-        public static T TransformTracing<T>(this IActivity activity) where T : class, IActivityTracing, new()
+        public static T TransformTracing<T>(this IActivity activity) where T : Tracing, new()
         {
             var baseType = (Activity) activity;
             var tracing = baseType.Tracing.Transform<T>();
@@ -23,7 +23,7 @@ public static class TracingExtension
         /// </summary>
         /// <param name="activityTracing">Tracing to add information to</param>
         /// <param name="setter">Setter delegate</param>
-        public static T Trace<T>(this T activityTracing, Action<T> setter) where T : class, IActivityTracing, new()
+        public static T Trace<T>(this T activityTracing, Action<T> setter) where T : Tracing, new()
         {
             setter(activityTracing);
             return activityTracing;
diff --git a/src/Tests/Moryx.AbstractionLayer.Tests/TracingActivityTest.cs b/src/Tests/Moryx.AbstractionLayer.Tests/TracingActivityTest.cs
index dc4552088..f2f655cb7 100644
--- a/src/Tests/Moryx.AbstractionLayer.Tests/TracingActivityTest.cs
+++ b/src/Tests/Moryx.AbstractionLayer.Tests/TracingActivityTest.cs
@@ -133,14 +133,12 @@ private enum FooProgress
             Done = 100
         }
 
-        private class FooTracing : Tracing, IActivityProgress
+        private class FooTracing : Tracing
         {
             public string FooName { get; set; }
 
             public int FooNumber { get; set; }
-
-            public double Relative => base.Progress;
-
+            
             public new FooProgress Progress
             {
                 get { return (FooProgress) base.Progress; }