Index: Core/Components/src/Core.Components.PointedTree/Core.Components.PointedTree.csproj
===================================================================
diff -u -rda140d65b716fbd74d742a193477b1796823b772 -r2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb
--- Core/Components/src/Core.Components.PointedTree/Core.Components.PointedTree.csproj	(.../Core.Components.PointedTree.csproj)	(revision da140d65b716fbd74d742a193477b1796823b772)
+++ Core/Components/src/Core.Components.PointedTree/Core.Components.PointedTree.csproj	(.../Core.Components.PointedTree.csproj)	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -36,11 +36,15 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="..\..\..\Common\src\Core.Common.Version\GlobalAssembly.cs">
       <Link>Properties\GlobalAssembly.cs</Link>
     </Compile>
+    <Compile Include="Data\GraphNode.cs" />
+    <Compile Include="Data\GraphNodeShape.cs" />
+    <Compile Include="Data\GraphNodeStyle.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
Index: Core/Components/src/Core.Components.PointedTree/Data/GraphNode.cs
===================================================================
diff -u
--- Core/Components/src/Core.Components.PointedTree/Data/GraphNode.cs	(revision 0)
+++ Core/Components/src/Core.Components.PointedTree/Data/GraphNode.cs	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -0,0 +1,107 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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 System;
+using System.Collections.Generic;
+using System.Drawing;
+
+namespace Core.Components.PointedTree.Data
+{
+    /// <summary>
+    /// Class for data with the purpose of becoming visible in pointed tree components.
+    /// </summary>
+    public class GraphNode
+    {
+        private readonly GraphNode[] childNodes;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="GraphNode"/> with default styling.
+        /// </summary>
+        /// <param name="title">The title of the node.</param>
+        /// <param name="childNodes">The child nodes of the node.</param>
+        /// <param name="isSelectable">Indicator whether the node is selectable.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="title"/>
+        /// or <paramref name="childNodes"/> is <c>null</c>.</exception>
+        public GraphNode(string title, GraphNode[] childNodes, bool isSelectable)
+            : this(title, childNodes, isSelectable, CreateDefaultGraphNodeStyle()) { }
+
+        /// <summary>
+        /// Creates a new instance of <see cref="GraphNode"/>.
+        /// </summary>
+        /// <param name="title">The title of the node.</param>
+        /// <param name="childNodes">The child nodes of the node.</param>
+        /// <param name="isSelectable">Indicator whether the node is selectable.</param>
+        /// <param name="style">The style of the node.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="title"/>,
+        /// <paramref name="childNodes"/> or <paramref name="style"/> is <c>null</c>.</exception>
+        public GraphNode(string title, GraphNode[] childNodes, bool isSelectable, GraphNodeStyle style)
+        {
+            if (title == null)
+            {
+                throw new ArgumentNullException(nameof(title));
+            }
+            if (childNodes == null)
+            {
+                throw new ArgumentNullException(nameof(childNodes));
+            }
+            if (style == null)
+            {
+                throw new ArgumentNullException(nameof(style));
+            }
+
+            Title = title;
+            this.childNodes = childNodes;
+            IsSelectable = isSelectable;
+            Style = style;
+        }
+
+        /// <summary>
+        /// Gets the title of the node.
+        /// </summary>
+        public string Title { get; }
+
+        /// <summary>
+        /// Gets the child nodes of the node.
+        /// </summary>
+        public IEnumerable<GraphNode> ChildNodes
+        {
+            get
+            {
+                return childNodes;
+            }
+        }
+
+        /// <summary>
+        /// Gets an indicator whether the node is selectable.
+        /// </summary>
+        public bool IsSelectable { get; }
+
+        /// <summary>
+        /// Gets the style of the node.
+        /// </summary>
+        public GraphNodeStyle Style { get; }
+
+        private static GraphNodeStyle CreateDefaultGraphNodeStyle()
+        {
+            return new GraphNodeStyle(GraphNodeShape.Rectangle, Color.Gray, Color.Black, 2);
+        }
+    }
+}
\ No newline at end of file
Index: Core/Components/src/Core.Components.PointedTree/Data/GraphNodeShape.cs
===================================================================
diff -u
--- Core/Components/src/Core.Components.PointedTree/Data/GraphNodeShape.cs	(revision 0)
+++ Core/Components/src/Core.Components.PointedTree/Data/GraphNodeShape.cs	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -0,0 +1,32 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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.
+
+namespace Core.Components.PointedTree.Data
+{
+    /// <summary>
+    /// All shapes supported for <see cref="GraphNode"/>.
+    /// </summary>
+    public enum GraphNodeShape
+    {
+        Rectangle,
+        Diamond
+    }
+}
\ No newline at end of file
Index: Core/Components/src/Core.Components.PointedTree/Data/GraphNodeStyle.cs
===================================================================
diff -u
--- Core/Components/src/Core.Components.PointedTree/Data/GraphNodeStyle.cs	(revision 0)
+++ Core/Components/src/Core.Components.PointedTree/Data/GraphNodeStyle.cs	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -0,0 +1,66 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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 System.Drawing;
+
+namespace Core.Components.PointedTree.Data
+{
+    /// <summary>
+    /// This class represents styling of a <see cref="GraphNode"/>.
+    /// </summary>
+    public class GraphNodeStyle
+    {
+        /// <summary>
+        /// Creates a new instance of <see cref="GraphNodeStyle"/>.
+        /// </summary>
+        /// <param name="shape">The shape of the node.</param>
+        /// <param name="fillColor">The fill color of the node.</param>
+        /// <param name="lineColor">The line color of the node.</param>
+        /// <param name="lineWidth">The line width of the node.</param>
+        public GraphNodeStyle(GraphNodeShape shape, Color fillColor, Color lineColor, int lineWidth)
+        {
+            Shape = shape;
+            FillColor = fillColor;
+            LineColor = lineColor;
+            LineWidth = lineWidth;
+        }
+
+        /// <summary>
+        /// Gets the shape of the node.
+        /// </summary>
+        public GraphNodeShape Shape { get; }
+
+        /// <summary>
+        /// Gets the fill color of the node.
+        /// </summary>
+        public Color FillColor { get; }
+
+        /// <summary>
+        /// Gets the line color of the node.
+        /// </summary>
+        public Color LineColor { get; }
+
+        /// <summary>
+        /// Gets the line width of the node.
+        /// </summary>
+        public int LineWidth { get; }
+    }
+}
\ No newline at end of file
Index: Core/Components/test/Core.Components.PointedTree.Test/Core.Components.PointedTree.Test.csproj
===================================================================
diff -u -rda140d65b716fbd74d742a193477b1796823b772 -r2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb
--- Core/Components/test/Core.Components.PointedTree.Test/Core.Components.PointedTree.Test.csproj	(.../Core.Components.PointedTree.Test.csproj)	(revision da140d65b716fbd74d742a193477b1796823b772)
+++ Core/Components/test/Core.Components.PointedTree.Test/Core.Components.PointedTree.Test.csproj	(.../Core.Components.PointedTree.Test.csproj)	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -45,11 +45,14 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="..\..\..\Common\src\Core.Common.Version\GlobalAssembly.cs">
       <Link>Properties\GlobalAssembly.cs</Link>
     </Compile>
+    <Compile Include="Data\GraphNodeStyleTest.cs" />
+    <Compile Include="Data\GraphNodeTest.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
Index: Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeStyleTest.cs
===================================================================
diff -u
--- Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeStyleTest.cs	(revision 0)
+++ Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeStyleTest.cs	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -0,0 +1,50 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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 System.Drawing;
+using Core.Components.PointedTree.Data;
+using NUnit.Framework;
+
+namespace Core.Components.PointedTree.Test.Data
+{
+    [TestFixture]
+    public class GraphNodeStyleTest
+    {
+        [Test]
+        public void Constructor_ExpectedValues()
+        {
+            // Setup
+            Color fillColor = Color.DarkRed;
+            Color lineColor = Color.DarkBlue;
+            const int lineWidth = 2;
+            const GraphNodeShape shape = GraphNodeShape.Diamond;
+
+            // Call
+            var style = new GraphNodeStyle(shape, fillColor, lineColor, lineWidth);
+
+            // Assert
+            Assert.AreEqual(shape, style.Shape);
+            Assert.AreEqual(fillColor, style.FillColor);
+            Assert.AreEqual(lineColor, style.LineColor);
+            Assert.AreEqual(lineWidth, style.LineWidth);
+        }
+    }
+}
\ No newline at end of file
Index: Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeTest.cs
===================================================================
diff -u
--- Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeTest.cs	(revision 0)
+++ Core/Components/test/Core.Components.PointedTree.Test/Data/GraphNodeTest.cs	(revision 2a9569e9a7d82f4f1627fc6eaafd9bda61ac0feb)
@@ -0,0 +1,144 @@
+// 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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 System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using Core.Components.PointedTree.Data;
+using NUnit.Framework;
+
+namespace Core.Components.PointedTree.Test.Data
+{
+    [TestFixture]
+    public class GraphNodeTest
+    {
+        [Test]
+        public void Constructor_WithStyling_ExpectedValues()
+        {
+            // Setup
+            Color fillColor = Color.Aqua;
+            Color lineColor = Color.Brown;
+            const GraphNodeShape shape = GraphNodeShape.Diamond;
+            const int lineWidth = 3;
+
+            var style = new GraphNodeStyle(shape, fillColor, lineColor, lineWidth);
+
+            GraphNode[] childNodes =
+            {
+                new GraphNode("node 1", new GraphNode[0], false, style),
+                new GraphNode("node 2", new[]
+                {
+                    new GraphNode("node 3", new GraphNode[0], false, style)
+                }, true, style)
+            };
+
+            const string title = "test";
+            const bool isSelectable = false;
+
+            // Call
+            var node = new GraphNode(title, childNodes, isSelectable, style);
+
+            // Assert
+            Assert.AreEqual(title, node.Title);
+            Assert.AreEqual(isSelectable, node.IsSelectable);
+            Assert.AreSame(style, node.Style);
+
+            GraphNode[] actualChildNodes = node.ChildNodes.ToArray();
+            AssertChildNodes(childNodes, actualChildNodes);
+        }
+
+        [Test]
+        public void Constructor_WithoutStyling_ExpectedValues()
+        {
+            // Setup
+            GraphNode[] childNodes =
+            {
+                new GraphNode("node 1", new GraphNode[0], false),
+                new GraphNode("node 2", new[]
+                {
+                    new GraphNode("node 3", new GraphNode[0], true)
+                }, true)
+            };
+
+            const string title = "test";
+            const bool isSelectable = false;
+
+            // Call
+            var node = new GraphNode(title, childNodes, isSelectable);
+
+            // Assert
+            Assert.AreEqual(title, node.Title);
+            Assert.AreEqual(isSelectable, node.IsSelectable);
+            Assert.AreEqual(GraphNodeShape.Rectangle, node.Style.Shape);
+            Assert.AreEqual(Color.Gray, node.Style.FillColor);
+            Assert.AreEqual(Color.Black, node.Style.LineColor);
+            Assert.AreEqual(2, node.Style.LineWidth);
+
+            GraphNode[] actualChildNodes = node.ChildNodes.ToArray();
+            AssertChildNodes(childNodes, actualChildNodes);
+        }
+
+        [Test]
+        public void Constructor_TitleNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new GraphNode(null, new GraphNode[0], false);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("title", exception.ParamName);
+        }
+
+        [Test]
+        public void Constructor_ChildNodesNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new GraphNode("test", null, false);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("childNodes", exception.ParamName);
+        }
+
+        [Test]
+        public void Constructor_StyleNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new GraphNode("test", new GraphNode[0], false, null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("style", exception.ParamName);
+        }
+
+        private static void AssertChildNodes(IList<GraphNode> childNodes, IList<GraphNode> actualChildNodes)
+        {
+            Assert.AreEqual(childNodes.Count, actualChildNodes.Count);
+
+            for (var i = 0; i < childNodes.Count; i++)
+            {
+                Assert.AreEqual(childNodes[i], actualChildNodes[i]);
+                AssertChildNodes(childNodes[i].ChildNodes.ToArray(), actualChildNodes[i].ChildNodes.ToArray());
+            }
+        }
+    }
+}
\ No newline at end of file