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diff --git a/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/helper/Utils.java b/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/helper/Utils.java
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+++ b/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/helper/Utils.java
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+/*******************************************************************************
+ * Copyright (c) 2013 Pascal Hirmer.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and the Apache License 2.0 which both accompany this distribution,
+ * and are available at http://www.eclipse.org/legal/epl-v10.html
+ * and http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Contributors:
+ *    Pascal Hirmer - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.winery.topologymodeler.addons.topologycompleter.helper;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+import javax.xml.namespace.QName;
+
+import org.eclipse.winery.model.tosca.TCapabilityDefinition;
+import org.eclipse.winery.model.tosca.TNodeTemplate;
+import org.eclipse.winery.model.tosca.TNodeType;
+import org.eclipse.winery.model.tosca.TRequirement;
+import org.eclipse.winery.model.tosca.TRequirementType;
+import org.eclipse.winery.model.tosca.TTopologyTemplate;
+import org.eclipse.winery.topologymodeler.addons.topologycompleter.analyzer.TOSCAAnalyzer;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Contains methods to match requirements and capabilities and find elements in the {@link TTopologyTemplate}
+ */
+public class Utils {
+
+	private static final org.slf4j.Logger logger = LoggerFactory.getLogger(Utils.class.getName());
+
+	/**
+	 * This method searches {@link TNodeType}s in the repository that match a requirement.
+	 *
+	 * @param requirement
+	 *            the requirement to be matched
+	 * @param toscaAnalyzer
+	 *            the {@link TOSCAAnalyzer} object to access the data model
+	 *
+	 * @return a list of the matched {@link TNodeType}s
+	 */
+	public static List<TNodeType> matchRequirementAndCapability(TRequirement requirement, TOSCAAnalyzer toscaAnalyzer) {
+
+		List<TNodeType> possibleNodeTypes = new ArrayList<TNodeType>();
+
+		// find all matching Node Types for a requirement by the "requiredCapabilityType" attribute of its type
+		for (TRequirementType requirementType : toscaAnalyzer.getRequirementTypes()) {
+			if (requirementType.getName().equals(requirement.getType().getLocalPart())) {
+
+				QName requiredCapabilityType = requirementType.getRequiredCapabilityType();
+				for (TNodeType nodeType : toscaAnalyzer.getNodeTypes()) {
+					if (nodeType.getCapabilityDefinitions() != null) {
+						for (TCapabilityDefinition cd : nodeType.getCapabilityDefinitions().getCapabilityDefinition()) {
+							if (cd.getCapabilityType().getLocalPart().equals(requiredCapabilityType.getLocalPart())) {
+								possibleNodeTypes.add(nodeType);
+							}
+						}
+					}
+				}
+			}
+		}
+
+		return possibleNodeTypes;
+	}
+
+	/**
+	 * Generates a random {@link UUID} exclusively used by the {@link TemplateBuilder}.
+	 *
+	 * @return the generated {@link UUID} id
+	 */
+	public static String createRandomID() {
+		return UUID.randomUUID().toString();
+	}
+
+	/**
+	 * Returns a {@link TNodeTemplate} for a given Id.
+	 *
+	 * @param nodeTemplates
+	 *            all the {@link TNodeTemplate} in the {@link TTopologyTemplate}
+	 * @param id
+	 *            the id of the {@link TNodeTemplate} to be found
+	 *
+	 * @return the found {@link TNodeTemplate} or null if not found
+	 */
+	public static TNodeTemplate getNodeTemplateForId(List<TNodeTemplate> nodeTemplates, String id) {
+
+		for (TNodeTemplate nt : nodeTemplates) {
+
+			if (nt.getId().equals(id)) {
+				return nt;
+			}
+		}
+
+		logger.error("No NodeTemplate with " + id + " exists");
+
+		return null;
+
+	}
+
+	/**
+	 * Returns a {@link TNodeType} for a given Id.
+	 *
+	 * @param nodeTypes
+	 *            All the {@link TNodeType} in the {@link TTopologyTemplate}
+	 * @param Id
+	 *            The id of the {@link TNodeType} to be searched
+	 * @return the {@link TNodeType} or null if not found
+	 */
+	public static TNodeType getNodeTypeForId(List<TNodeType> nodeTypes, QName id) {
+
+		for (TNodeType nodeType : nodeTypes) {
+			if (nodeType.getName().equals(id.getLocalPart()) && nodeType.getTargetNamespace().equals(id.getNamespaceURI())) {
+				return nodeType;
+			}
+		}
+
+		logger.error("No NodeType with " + id + " exists");
+
+		// no type could be found for the given ID, this case cannot occur if the topology was modelled in the Winery Topology Modeler
+		return null;
+	}
+}