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diff --git a/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/controllers/ProcessController.java b/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/controllers/ProcessController.java
new file mode 100644
index 000000000..8b66bd89a
--- /dev/null
+++ b/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/controllers/ProcessController.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.slc.client.ui.controllers;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+
+import org.argeo.slc.SlcException;
+import org.argeo.slc.execution.ExecutionProcess;
+import org.argeo.slc.execution.SlcAgent;
+import org.argeo.slc.jcr.execution.JcrExecutionProcess;
+
+/**
+ * We use a separate class (not in UI components) so that it can be a singleton
+ * in an application context.
+ */
+public class ProcessController {
+	// private final static Log log =
+	// LogFactory.getLog(ProcessController.class);
+	// private Map<String, SlcAgentFactory> agentFactories = new HashMap<String,
+	// SlcAgentFactory>();
+
+	private SlcAgent agent;
+
+	public ExecutionProcess process(Node processNode) {
+		JcrExecutionProcess process = new JcrExecutionProcess(processNode);
+		try {
+			SlcAgent slcAgent = findAgent(processNode);
+			if (slcAgent == null)
+				throw new SlcException("Cannot find agent for " + processNode);
+			slcAgent.process(process);
+			return process;
+		} catch (Exception e) {
+			if (!process.getStatus().equals(ExecutionProcess.ERROR))
+				process.setStatus(ExecutionProcess.ERROR);
+			throw new SlcException("Cannot execute " + processNode, e);
+		}
+	}
+
+	public void kill(Node processNode) {
+		JcrExecutionProcess process = new JcrExecutionProcess(processNode);
+		try {
+			SlcAgent slcAgent = findAgent(processNode);
+			if (slcAgent == null)
+				throw new SlcException("Cannot find agent for " + processNode);
+			slcAgent.kill(process.getUuid());
+		} catch (Exception e) {
+			if (!process.getStatus().equals(ExecutionProcess.ERROR))
+				process.setStatus(ExecutionProcess.ERROR);
+			throw new SlcException("Cannot execute " + processNode, e);
+		}
+	}
+
+	/** Always return the default runtime agent */
+	protected SlcAgent findAgent(Node processNode) throws RepositoryException {
+		// we currently only deal with single agents
+		// Node realizedFlowNode = processNode.getNode(SlcNames.SLC_FLOW);
+		// NodeIterator nit = realizedFlowNode.getNodes();
+		// if (nit.hasNext()) {
+		// // TODO find a better way to determine which agent to use
+		// // currently we check the agent of the first registered flow
+		// Node firstRealizedFlow = nit.nextNode();
+		// // we assume there is an nt:address
+		// String firstFlowPath = firstRealizedFlow
+		// .getNode(SlcNames.SLC_ADDRESS)
+		// .getProperty(Property.JCR_PATH).getString();
+		// Node flowNode = processNode.getSession().getNode(firstFlowPath);
+		// String agentFactoryPath = SlcJcrUtils
+		// .flowAgentFactoryPath(firstFlowPath);
+		// if (!agentFactories.containsKey(agentFactoryPath))
+		// throw new SlcException("No agent factory registered under "
+		// + agentFactoryPath);
+		// SlcAgentFactory agentFactory = agentFactories.get(agentFactoryPath);
+		// Node agentNode = ((Node) flowNode
+		// .getAncestor(SlcJcrUtils.AGENT_FACTORY_DEPTH + 1));
+		// String agentUuid = agentNode.getProperty(SlcNames.SLC_UUID)
+		// .getString();
+		//
+		// // process
+		// return agentFactory.getAgent(agentUuid);
+		// }
+
+		return agent;
+	}
+
+	public void setAgent(SlcAgent agent) {
+		this.agent = agent;
+	}
+
+	// public synchronized void register(SlcAgentFactory agentFactory,
+	// Map<String, String> properties) {
+	// String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
+	// if (log.isDebugEnabled())
+	// log.debug("Agent factory registered under " + path);
+	// agentFactories.put(path, agentFactory);
+	// }
+	//
+	// public synchronized void unregister(SlcAgentFactory agentFactory,
+	// Map<String, String> properties) {
+	// String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
+	// if (log.isDebugEnabled())
+	// log.debug("Agent factory unregistered from " + path);
+	// agentFactories.remove(path);
+	// }
+}