diff --git a/html/relnotes.html b/html/relnotes.html
index 3857a7161f84aeffe8b9daca51334ee1ea0fc2d4..2704cdccff307dd963e5614b03a5d10df8bffb81 100644
--- a/html/relnotes.html
+++ b/html/relnotes.html
@@ -69,6 +69,10 @@ with a warning:
 <!--h2>Version 4.9 (1xxx): ??/??/201X - Letraset</h2-->
 <!--h2>Version 4.8 (1xxx): ??/??/201x - AntÊsine</h2-->
 
+<p><ul compact="1">
+<li>Added interface <tt>AlignmentRepairer</tt> (api)</tt>
+<li>Implemented <tt>AbstractRepairer</tt> (impl)</tt>
+</ul></p>
 
 <h2>Version 4.7 (2014): 06/12/2014 - Al pesto</h2>
 
diff --git a/src/fr/inrialpes/exmo/align/impl/AbstractRepairer.java b/src/fr/inrialpes/exmo/align/impl/AbstractRepairer.java
new file mode 100644
index 0000000000000000000000000000000000000000..3a985a471a40c68c333666e2d7368a13aae90f69
--- /dev/null
+++ b/src/fr/inrialpes/exmo/align/impl/AbstractRepairer.java
@@ -0,0 +1,47 @@
+/*
+ * $$
+ *
+ * Copyright (C) INRIA, 2014
+ *
+ * This program 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 2.1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+package fr.inrialpes.exmo.align.impl; 
+
+import org.semanticweb.owl.align.Alignment;
+import org.semanticweb.owl.align.AlignmentRepairer;
+import org.semanticweb.owl.align.AlignmentException;
+import org.semanticweb.owl.align.OntologyNetwork;
+
+import java.util.Properties;
+
+public abstract class AbstractRepairer implements AlignmentRepairer {
+
+    public void init( Properties param ) {};
+
+    /**
+     * Performs a <i>local</i> repair of a network of ontology by
+     * repairing all its alignments.
+     */
+    public OntologyNetwork repair( OntologyNetwork network, Properties param ) throws AlignmentException {
+	// Clone the alignment without ontologies
+	OntologyNetwork result = ((BasicOntologyNetwork)network).copyOnto();
+	// repair alignments
+	for ( Alignment al : network.getAlignments() ) {
+	    result.addAlignment( repair( al, param ) );
+	}
+	return result;
+    }
+}
diff --git a/src/org/semanticweb/owl/align/AlignmentRepairer.java b/src/org/semanticweb/owl/align/AlignmentRepairer.java
new file mode 100644
index 0000000000000000000000000000000000000000..94e8299f88f08508562d6a805c4e3ff42ef5015c
--- /dev/null
+++ b/src/org/semanticweb/owl/align/AlignmentRepairer.java
@@ -0,0 +1,71 @@
+/*
+ * $Id$
+ *
+ * Copyright (C) INRIA, 2014
+ *
+ * This program 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 2.1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+package org.semanticweb.owl.align; 
+
+import java.util.Properties;
+
+import org.semanticweb.owl.align.Alignment;
+import org.semanticweb.owl.align.OntologyNetwork;
+
+
+/**
+ * Represents an operator for repairing alignments and networks of alignments.
+ *
+ * @author Jérôme Euzenat
+ * @version $Id$ 
+ */
+
+public interface AlignmentRepairer {
+
+    /**
+     * Has to be invoked before using repair.
+     * May be used for initialising global structures.
+     *
+     * Known parameters (for both alignments and networks):
+     * - reasoner (hermit|pellet|elk): which reasoner is used
+     */
+    public void init( Properties param ) throws AlignmentException;
+
+    /** Repairing **/
+
+    /**
+     * Perform repair on the alignment.
+     * The ontology may be obtained from the values of getOntology1() and getOntology2() 
+     * These are objects that may be URI, instance of Ontowrap or
+     * instances of OWLOntologies.
+     *
+     * Known parameters (for both alignments and networks):
+     * - postSATCheck (boolean): does the repairer performs a satisfiability check after repair
+     * - extractModules (boolean): does the repairer first extract modules
+     * - completeness (complete|efficient|bruteforce): is the reasoning complete or approximate
+     * - optimality (global|local|greedy|greedymin|globaliso): does the repairer look for particular optimum
+     * - entities (concepts|properties|conceptproperties): types of correspondences taken into account
+     * -
+     */
+    public Alignment repair( Alignment alignment, Properties param ) throws AlignmentException;
+
+    /**
+     * Perform repair on a whole network of ontologies.
+     */
+    public OntologyNetwork repair( OntologyNetwork network, Properties param ) throws AlignmentException;
+
+}
+