diff --git a/apps/Makefile b/apps/Makefile
index 6f314656f..a391b59d1 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -9,6 +9,7 @@ app_objs += $(addprefix apps/,\
   constant.o\
   expression_text_field_delegate.o\
   main.o\
+  node.o\
   tool_box_controller.o\
 )
 
diff --git a/apps/node.cpp b/apps/node.cpp
new file mode 100644
index 000000000..08f3b143a
--- /dev/null
+++ b/apps/node.cpp
@@ -0,0 +1,21 @@
+#include "node.h"
+
+const Node * Node::children(int index) const {
+  return &m_children[index];
+}
+
+int Node::numberOfChildren() {
+  return m_numberOfChildren;
+}
+
+const char * Node::label() const {
+  return m_label;
+}
+
+const char * Node::text() const {
+  return m_text;
+}
+
+bool Node::isNull() {
+  return (m_label == nullptr);
+}
diff --git a/apps/node.h b/apps/node.h
new file mode 100644
index 000000000..7f0893f55
--- /dev/null
+++ b/apps/node.h
@@ -0,0 +1,26 @@
+#ifndef APPS_NODE_H
+#define APPS_NODE_H
+
+class Node {
+public:
+  constexpr Node(const char * label = nullptr, const char * text = nullptr, const Node * children = nullptr, int numberOfChildren = 0) :
+    m_label(label),
+    m_text(text),
+    m_children(children),
+    m_numberOfChildren(numberOfChildren)
+  {
+  };
+  const Node * children(int index) const;
+  const char * label() const;
+  const char * text() const;
+  int numberOfChildren();
+  bool isNull();
+private:
+  const char * m_label;
+  const char * m_text;
+  const Node * m_children;
+  int m_numberOfChildren;
+};
+
+#endif
+