diff --git a/prism/src/explicit/PrismExplicit.java b/prism/src/explicit/PrismExplicit.java
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+//==============================================================================
+//	
+//	Copyright (c) 2002-
+//	Authors:
+//	* Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford)
+//	
+//------------------------------------------------------------------------------
+//	
+//	This file is part of PRISM.
+//	
+//	PRISM is free software; you can redistribute it and/or modify
+//	it under the terms of the GNU General Public License as published by
+//	the Free Software Foundation; either version 2 of the License, or
+//	(at your option) any later version.
+//	
+//	PRISM 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 General Public License for more details.
+//	
+//	You should have received a copy of the GNU General Public License
+//	along with PRISM; if not, write to the Free Software Foundation,
+//	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//	
+//==============================================================================
+
+package explicit;
+
+import java.util.*;
+import java.io.*;
+
+import parser.ast.*;
+import prism.*;
+// Override some imports for which there are name clashes
+import explicit.Model;
+import explicit.StateModelChecker;
+
+/**
+ * This class connects PRISM to the various bits of explicit-state functionality that are implemented.
+ * The intention is to minimise dependencies on the Prism class by anything in this package.
+ * This makes these classes easier to use independently.
+ */
+public class PrismExplicit
+{
+	// Parent Prism object
+	private Prism prism = null;
+	// Model checker(s)
+	private StateModelChecker mc = null;
+	
+	public PrismExplicit(Prism prism)
+	{
+		this.prism = prism;
+	}
+
+	// model checking
+	// returns result or throws an exception in case of error
+	
+	public Result modelCheck(Model model, String labelsFilename, PropertiesFile propertiesFile, Expression expr) throws PrismException, PrismLangException
+	{
+		Result result = null;
+		
+		// Check that property is valid for this model type
+		// and create new model checker object
+		expr.checkValid(model.getModelType());
+		switch (model.getModelType()) {
+		case DTMC:
+			mc = new DTMCModelChecker();
+			break;
+		case MDP:
+			mc = new MDPModelChecker();
+			break;
+		case CTMC:
+			mc = new CTMCModelChecker();
+			break;
+		default:
+			throw new PrismException("Unknown model type"+model.getModelType());
+		}
+		
+		mc.setLog(prism.getMainLog());
+		
+		// TODO: pass PRISM settings to mc
+		
+		// pass labels info
+		mc.setLabelsFilename(labelsFilename);
+		
+		// Do model checking
+//		res = mc.check(expr);
+		result = mc.check(model, expr);
+		
+		// Return result
+		return result;
+	}
+	
+	/**
+	 * Simple test program.
+	 */
+	public static void main(String args[])
+	{
+		Prism prism;
+		try {
+			PrismLog log = new PrismFileLog("stdout");
+			prism = new Prism(log, log);
+			prism.initialise();
+			prism.setDoProbChecks(false);
+			ModulesFile modulesFile = prism.parseModelFile(new File(args[0]));
+			modulesFile.setUndefinedConstants(null);
+			PropertiesFile propertiesFile = prism.parsePropertiesFile(modulesFile, new File(args[1]));
+			propertiesFile.setUndefinedConstants(null);
+			prism.Model model = prism.buildModel(modulesFile);
+			prism.exportTransToFile(model, true, Prism.EXPORT_PLAIN, new File("tmp.tra"));
+			prism.exportLabelsToFile(model, modulesFile, null, Prism.EXPORT_PLAIN, new File("tmp.lab"));
+			DTMCSimple modelExplicit = new DTMCSimple();
+			modelExplicit.buildFromPrismExplicit("tmp.tra");
+			PrismExplicit pe = new PrismExplicit(prism);
+			Object res = pe.modelCheck(modelExplicit, "tmp.lab", propertiesFile, propertiesFile.getProperty(0));
+		} catch (PrismException e) {
+			System.out.println(e);
+		} catch (FileNotFoundException e) {
+			System.out.println(e);
+		}
+	}
+}