Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -rab1121dee05c5484181bb1b0470d49eb48d325fe -rc4a957f939912203096b6ba3e09f43950414389a
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision ab1121dee05c5484181bb1b0470d49eb48d325fe)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision c4a957f939912203096b6ba3e09f43950414389a)
@@ -76,7 +76,7 @@
             yield return new PropertyInfo<PipingInputContext, PipingInputContextProperties>
             {
                 CreateInstance = context => new PipingInputContextProperties(context,
-                                                                             () => GetCalculatedAssessmentLevel(context.PipingCalculation),
+                                                                             () => GetNormativeAssessmentLevel(context.PipingCalculation),
                                                                              new ObservablePropertyChangeHandler(context.PipingCalculation, context.WrappedData))
             };
             yield return new PropertyInfo<PipingOutputContext, PipingOutputProperties>
@@ -553,7 +553,7 @@
         {
             foreach (PipingCalculation calculation in pipingCalculations)
             {
-                PipingCalculationService.Validate(calculation, GetCalculatedAssessmentLevel(calculation));
+                PipingCalculationService.Validate(calculation, GetNormativeAssessmentLevel(calculation));
             }
         }
 
@@ -566,7 +566,7 @@
                 Gui.MainWindow,
                 calculations
                     .Select(pc => new PipingCalculationActivity(pc,
-                                                                GetCalculatedAssessmentLevel(pc),
+                                                                GetNormativeAssessmentLevel(pc),
                                                                 assessmentInput,
                                                                 norm,
                                                                 contribution))
@@ -617,7 +617,7 @@
 
         #endregion
 
-        private static RoundedDouble GetCalculatedAssessmentLevel(PipingCalculation calculation)
+        private static RoundedDouble GetNormativeAssessmentLevel(PipingCalculation calculation)
         {
             return calculation.InputParameters.HydraulicBoundaryLocation?.DesignWaterLevelCalculation1.Output?.Result ?? RoundedDouble.NaN;
         }
@@ -809,7 +809,7 @@
 
         private static void Validate(PipingCalculationScenarioContext context)
         {
-            PipingCalculationService.Validate(context.WrappedData, GetCalculatedAssessmentLevel(context.WrappedData));
+            PipingCalculationService.Validate(context.WrappedData, GetNormativeAssessmentLevel(context.WrappedData));
         }
 
         private static string ValidateAllDataAvailableAndGetErrorMessage(PipingCalculationScenarioContext context)
@@ -821,7 +821,7 @@
         {
             ActivityProgressDialogRunner.Run(Gui.MainWindow,
                                              new PipingCalculationActivity(calculation,
-                                                                           GetCalculatedAssessmentLevel(calculation),
+                                                                           GetNormativeAssessmentLevel(calculation),
                                                                            context.FailureMechanism.PipingProbabilityAssessmentInput,
                                                                            context.AssessmentSection.FailureMechanismContribution.Norm,
                                                                            context.FailureMechanism.Contribution));
Index: Ringtoets/Piping/src/Ringtoets.Piping.Service/PipingCalculationActivity.cs
===================================================================
diff -u -rab1121dee05c5484181bb1b0470d49eb48d325fe -rc4a957f939912203096b6ba3e09f43950414389a
--- Ringtoets/Piping/src/Ringtoets.Piping.Service/PipingCalculationActivity.cs	(.../PipingCalculationActivity.cs)	(revision ab1121dee05c5484181bb1b0470d49eb48d325fe)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Service/PipingCalculationActivity.cs	(.../PipingCalculationActivity.cs)	(revision c4a957f939912203096b6ba3e09f43950414389a)
@@ -35,14 +35,14 @@
         private readonly double norm;
         private readonly double contribution;
         private readonly PipingCalculation calculation;
-        private readonly RoundedDouble calculatedAssessmentLevel;
+        private readonly RoundedDouble normativeAssessmentLevel;
         private readonly PipingProbabilityAssessmentInput pipingProbabilityAssessmentInput;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="PipingCalculationActivity"/> class.
         /// </summary>
         /// <param name="calculation">The piping data used for the calculation.</param>
-        /// <param name="calculatedAssessmentLevel">The calculated assessment level to use in case no manual assessment level is provided.</param>
+        /// <param name="normativeAssessmentLevel">The normative assessment level to use in case no manual assessment level is provided.</param>
         /// <param name="pipingProbabilityAssessmentInput">General input that influences the probability estimate for a piping
         /// assessment.</param>
         /// <param name="norm">The norm to assess for.</param>
@@ -51,7 +51,7 @@
         /// <exception cref="ArgumentNullException">Thrown when any <paramref name="calculation"/> 
         /// or <paramref name="pipingProbabilityAssessmentInput"/> is <c>null</c>.</exception>
         public PipingCalculationActivity(PipingCalculation calculation,
-                                         RoundedDouble calculatedAssessmentLevel,
+                                         RoundedDouble normativeAssessmentLevel,
                                          PipingProbabilityAssessmentInput pipingProbabilityAssessmentInput,
                                          double norm,
                                          double contribution)
@@ -67,7 +67,7 @@
             }
 
             this.calculation = calculation;
-            this.calculatedAssessmentLevel = calculatedAssessmentLevel;
+            this.normativeAssessmentLevel = normativeAssessmentLevel;
             this.pipingProbabilityAssessmentInput = pipingProbabilityAssessmentInput;
             this.norm = norm;
             this.contribution = contribution;
@@ -77,15 +77,15 @@
 
         protected override void OnRun()
         {
-            if (!PipingCalculationService.Validate(calculation, calculatedAssessmentLevel))
+            if (!PipingCalculationService.Validate(calculation, normativeAssessmentLevel))
             {
                 State = ActivityState.Failed;
                 return;
             }
 
             PipingDataSynchronizationService.ClearCalculationOutput(calculation);
 
-            PipingCalculationService.Calculate(calculation, calculatedAssessmentLevel);
+            PipingCalculationService.Calculate(calculation, normativeAssessmentLevel);
         }
 
         protected override void OnCancel()