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diff --git a/src/main/java/org/cristalise/kernel/collection/CollectionDescription.java b/src/main/java/org/cristalise/kernel/collection/CollectionDescription.java
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+++ b/src/main/java/org/cristalise/kernel/collection/CollectionDescription.java
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+/**
+ * This file is part of the CRISTAL-iSE kernel.
+ * Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
+ *
+ * This library 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 library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; with out 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 library; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * http://www.fsf.org/licensing/licenses/lgpl.html
+ */
+package org.cristalise.kernel.collection;
+
+import org.cristalise.kernel.common.ObjectNotFoundException;
+import org.cristalise.kernel.entity.C2KLocalObject;
+
+
+/**
+ * A collection that can be instantiated. Collection descriptions link Item 
+ * descriptions together, which constrains membership of their instance. 
+ * 
+ */
+public interface CollectionDescription<E extends CollectionMember> extends C2KLocalObject {
+	
+	/**
+	 * Create a new instance of this collection.
+	 * @return a new collection instance
+	 * @throws ObjectNotFoundException When an essential piece of description 
+	 * data, such as a child Item PropertyDescription outcome, doesn't exist.
+	 */
+	public Collection<E> newInstance() throws ObjectNotFoundException;
+}