Index: Ringtoets/Common/src/Ringtoets.Common.Data/Probability/ProbabilityAssessmentOutputFactory.cs
===================================================================
diff -u
--- Ringtoets/Common/src/Ringtoets.Common.Data/Probability/ProbabilityAssessmentOutputFactory.cs	(revision 0)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Probability/ProbabilityAssessmentOutputFactory.cs	(revision 9e351540e19d1f727608501b55006ef9250fe8ad)
@@ -0,0 +1,64 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using Core.Common.Util;
+
+namespace Ringtoets.Common.Data.Probability
+{
+    /// <summary>
+    /// Factory for creating <see cref="ProbabilityAssessmentOutput"/>.
+    /// </summary>
+    public static class ProbabilityAssessmentOutputFactory
+    {
+        /// <summary>
+        /// Creates <see cref="ProbabilityAssessmentOutput"/> based on the provided parameters.
+        /// </summary>
+        /// <param name="norm">The norm to assess for.</param>
+        /// <param name="contribution">The contribution of the failure mechanism as a percentage (0-100)
+        /// to the total of the failure probability of the assessment section.</param>
+        /// <param name="lengthEffectN">The 'N' parameter used to factor in the 'length effect'.</param>
+        /// <param name="reliability">The reliability to use for the calculation.</param>
+        /// <returns>The calculated <see cref="ProbabilityAssessmentOutput"/>.</returns>
+        public static ProbabilityAssessmentOutput Create(double norm, double contribution, double lengthEffectN, double reliability)
+        {
+            double requiredProbability = GetRequiredProbability(contribution / 100.0, norm, lengthEffectN);
+            double probability = StatisticsConverter.ReliabilityToProbability(reliability);
+            double requiredReliability = StatisticsConverter.ProbabilityToReliability(requiredProbability);
+            double factorOfSafety = GetFactorOfSafety(reliability, requiredReliability);
+
+            return new ProbabilityAssessmentOutput(requiredProbability,
+                                                   requiredReliability,
+                                                   probability,
+                                                   reliability,
+                                                   factorOfSafety);
+        }
+
+        private static double GetRequiredProbability(double contribution, double norm, double lengthEffectN)
+        {
+            return contribution * norm / lengthEffectN;
+        }
+
+        private static double GetFactorOfSafety(double reliability, double requiredReliability)
+        {
+            return reliability / requiredReliability;
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj
===================================================================
diff -u -r3b1be2b494c30728564f41d6d8d14fc6a762957d -r9e351540e19d1f727608501b55006ef9250fe8ad
--- Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj	(.../Ringtoets.Common.Data.csproj)	(revision 3b1be2b494c30728564f41d6d8d14fc6a762957d)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Ringtoets.Common.Data.csproj	(.../Ringtoets.Common.Data.csproj)	(revision 9e351540e19d1f727608501b55006ef9250fe8ad)
@@ -114,6 +114,7 @@
     <Compile Include="Probabilistics\LogNormalDistributionDesignVariable.cs" />
     <Compile Include="Probabilistics\NormalDistribution.cs" />
     <Compile Include="Probabilistics\NormalDistributionDesignVariable.cs" />
+    <Compile Include="Probability\ProbabilityAssessmentOutputFactory.cs" />
     <Compile Include="Probability\ProbabilityHelper.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resources.Designer.cs">
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probability/ProbabilityAssessmentOutputFactoryTest.cs
===================================================================
diff -u
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probability/ProbabilityAssessmentOutputFactoryTest.cs	(revision 0)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Probability/ProbabilityAssessmentOutputFactoryTest.cs	(revision 9e351540e19d1f727608501b55006ef9250fe8ad)
@@ -0,0 +1,147 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using NUnit.Framework;
+using Ringtoets.Common.Data.Probability;
+using Ringtoets.Common.Data.TestUtil;
+
+namespace Ringtoets.Common.Data.Test.Probability
+{
+    [TestFixture]
+    public class ProbabilityAssessmentOutputFactoryTest
+    {
+        [Test]
+        [TestCase(30000, 100, 2, 0.00001666667)]
+        [TestCase(30000, 100, 1, 0.00003333333)]
+        [TestCase(30000, 24, 2, 0.00000400000)]
+        [TestCase(30000, 24, 1, 0.00000800000)]
+        [TestCase(20000, 100, 2, 0.00002500000)]
+        [TestCase(20000, 100, 1, 0.00005000000)]
+        [TestCase(20000, 24, 2, 0.00000600000)]
+        [TestCase(20000, 24, 1, 0.00001200000)]
+        public void RequiredProbability_DifferentInputs_ReturnsExpectedValue(int returnPeriod,
+                                                                             double contribution,
+                                                                             int lengthEffectN,
+                                                                             double expectedResult)
+        {
+            // Setup
+            double norm = 1.0 / returnPeriod;
+
+            // Call
+            ProbabilityAssessmentOutput probabilityAssessmentOutput = ProbabilityAssessmentOutputFactory.Create(
+                norm,
+                contribution,
+                lengthEffectN,
+                double.NaN);
+
+            // Assert
+            Assert.AreEqual(expectedResult, probabilityAssessmentOutput.RequiredProbability, 1e-6);
+        }
+
+        [Test]
+        [TestCase(30000, 100, 2, 4.149409984)]
+        [TestCase(30000, 100, 1, 3.987878937)]
+        [TestCase(30000, 24, 2, 4.465183916)]
+        [TestCase(30000, 24, 1, 4.314451022)]
+        [TestCase(20000, 100, 2, 4.055626981)]
+        [TestCase(20000, 100, 1, 3.890591886)]
+        [TestCase(20000, 24, 2, 4.377587847)]
+        [TestCase(20000, 24, 1, 4.2240038)]
+        public void RequiredReliability_DifferentInputs_ReturnsExpectedValue(int returnPeriod,
+                                                                             double contribution,
+                                                                             int lengthEffectN,
+                                                                             double expectedResult)
+        {
+            // Setup
+            double norm = 1.0 / returnPeriod;
+
+            // Call
+            ProbabilityAssessmentOutput probabilityAssessmentOutput = ProbabilityAssessmentOutputFactory.Create(
+                norm,
+                contribution,
+                lengthEffectN,
+                double.NaN);
+
+            // Assert
+            Assert.AreEqual(expectedResult, probabilityAssessmentOutput.RequiredReliability,
+                            probabilityAssessmentOutput.RequiredReliability.GetAccuracy());
+        }
+
+        [Test]
+        [TestCase(1.23456, 1.23456)]
+        [TestCase(789.123, 789.123)]
+        public void Reliability_DifferentInputs_ReturnsExpectedValue(double reliability, double expectedResult)
+        {
+            // Call
+            ProbabilityAssessmentOutput probabilityAssessmentOutput = ProbabilityAssessmentOutputFactory.Create(
+                int.MinValue,
+                double.NaN,
+                double.NaN,
+                reliability);
+
+            // Assert
+            Assert.AreEqual(expectedResult, probabilityAssessmentOutput.Reliability, probabilityAssessmentOutput.Reliability.GetAccuracy());
+        }
+
+        [Test]
+        [TestCase(4, 0.00003167124)]
+        [TestCase(5, 0.00000028665)]
+        public void Probability_DifferentInputs_ReturnsExpectedValue(double reliability, double expectedResult)
+        {
+            // Call
+            ProbabilityAssessmentOutput probabilityAssessmentOutput = ProbabilityAssessmentOutputFactory.Create(
+                int.MinValue,
+                double.NaN,
+                double.NaN,
+                reliability);
+
+            // Assert
+            Assert.AreEqual(expectedResult, probabilityAssessmentOutput.Probability, 1e-6);
+        }
+
+        [Test]
+        [TestCase(30000, 100, 2, 4.107479655, 0.989894869)]
+        [TestCase(30000, 100, 2, 4.149409984, 1)]
+        [TestCase(30000, 24, 2, 4.107479655, 0.919890363)]
+        [TestCase(30000, 24, 2, 4.149409984, 0.929280868)]
+        [TestCase(20000, 100, 2, 4.107479655, 1.012785366)]
+        [TestCase(20000, 100, 2, 4.149409984, 1.023124169)]
+        [TestCase(20000, 24, 2, 4.107479655, 0.938297482)]
+        [TestCase(20000, 24, 2, 4.149409984, 0.947875892)]
+        public void FactorOfSafety_DifferentInputs_ReturnsExpectedValue(int returnPeriod, double contribution,
+                                                                        int lengthEffectN, double reliability,
+                                                                        double expectedResult)
+        {
+            // Setup
+            double norm = 1.0 / returnPeriod;
+
+            // Call
+            ProbabilityAssessmentOutput probabilityAssessmentOutput = ProbabilityAssessmentOutputFactory.Create(
+                norm,
+                contribution,
+                lengthEffectN,
+                reliability);
+
+            // Assert
+            Assert.AreEqual(expectedResult, probabilityAssessmentOutput.FactorOfSafety, probabilityAssessmentOutput.FactorOfSafety.GetAccuracy());
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj
===================================================================
diff -u -r3b1be2b494c30728564f41d6d8d14fc6a762957d -r9e351540e19d1f727608501b55006ef9250fe8ad
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj	(.../Ringtoets.Common.Data.Test.csproj)	(revision 3b1be2b494c30728564f41d6d8d14fc6a762957d)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj	(.../Ringtoets.Common.Data.Test.csproj)	(revision 9e351540e19d1f727608501b55006ef9250fe8ad)
@@ -86,6 +86,7 @@
     <Compile Include="Probabilistics\VariationCoefficientNormalDistributionTest.cs" />
     <Compile Include="Probability\ProbabilityAssessmentInputTest.cs" />
     <Compile Include="Probability\ProbabilityAssessmentInputExtensionsTest.cs" />
+    <Compile Include="Probability\ProbabilityAssessmentOutputFactoryTest.cs" />
     <Compile Include="Probability\ProbabilityAssessmentOutputTest.cs" />
     <Compile Include="Contribution\FailureMechanismContributionItemTest.cs" />
     <Compile Include="Contribution\FailureMechanismContributionTest.cs" />