diff --git a/src/main/java/avatartranslator/AvatarMethod.java b/src/main/java/avatartranslator/AvatarMethod.java
index a8d5c41d10c0e90aa0d12cd4371f31b40141fa9c..28614607d660762ff513312c9b560535573412a2 100644
--- a/src/main/java/avatartranslator/AvatarMethod.java
+++ b/src/main/java/avatartranslator/AvatarMethod.java
@@ -82,10 +82,18 @@ public class AvatarMethod extends AvatarElement {
         return parameters;
     }
 
+    public void removeAttributes() {
+        parameters = new LinkedList<AvatarAttribute>();
+    }
+
     public List<AvatarAttribute> getListOfReturnAttributes() {
         return returnParameters;
     }
 
+    public void removeReturnAttributes() {
+        returnParameters = new LinkedList<AvatarAttribute>();
+    }
+
     public static boolean isAValidMethodName(String _method) {
         return AvatarTerm.isValidName (_method);
     }
diff --git a/src/main/java/avatartranslator/mutation/AddAttributeMutation.java b/src/main/java/avatartranslator/mutation/AddAttributeMutation.java
index 0d5214e4e4228a4892b9b5b36bf79412cb00bbce..f5fa57bb895801c7d9a42fde6e41ec12e8df1d28 100644
--- a/src/main/java/avatartranslator/mutation/AddAttributeMutation.java
+++ b/src/main/java/avatartranslator/mutation/AddAttributeMutation.java
@@ -1,3 +1,41 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
@@ -5,7 +43,6 @@ import avatartranslator.*;
 
 /**
  * Class AddAttributeMutation
- * Mutation that adds an attribute to a block
  * Creation: 23/06/2022
  *
  * @author Léon FRENOT
diff --git a/src/main/java/avatartranslator/mutation/AddMethodMutation.java b/src/main/java/avatartranslator/mutation/AddMethodMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..34293460534571b5aaaf6ee463eeb2ea3cf92c06
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/AddMethodMutation.java
@@ -0,0 +1,83 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+
+/**
+ * Class AddMethodMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class AddMethodMutation extends MethodMutation implements AddMutation {
+
+    public AddMethodMutation(String _name, String _blockName, boolean _imp) {
+        setName(_name);
+        setBlockName(_blockName);
+        initParameters();
+        setImplementationProvided(_imp);
+    }
+
+    public AddMethodMutation(String _name, String _blockName) {
+       this(_name, _blockName, false);
+    }
+
+    public AvatarMethod createElement(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        AvatarMethod am = new AvatarMethod(getName(), null);
+        for(String s : getReturnParameters()) {
+            AvatarAttribute aa = new AvatarAttribute("", AvatarType.getType(s), block, null);
+            am.addReturnParameter(aa);
+        }
+        for(String[] s : getParameters()) {
+            AvatarAttribute aa = new AvatarAttribute(s[1], AvatarType.getType(s[0]), block, null);
+            am.addParameter(aa);
+        }
+        am.setImplementationProvided(isImplementationProvided());
+        return am;
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        AvatarMethod am = createElement(_avspec);
+        AvatarBlock block = getBlock(_avspec);
+        block.addMethod(am);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/avatartranslator/mutation/AddMutation.java b/src/main/java/avatartranslator/mutation/AddMutation.java
index 93af5b20092d7e8928429ea2774c63776dac020a..caf3b96278601909a57b2c7441f5ff96c29a5b7d 100644
--- a/src/main/java/avatartranslator/mutation/AddMutation.java
+++ b/src/main/java/avatartranslator/mutation/AddMutation.java
@@ -1,7 +1,52 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 
+/**
+ * Interface AddMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public interface AddMutation {
 
     AvatarElement createElement(AvatarSpecification _avspec);
diff --git a/src/main/java/avatartranslator/mutation/AddSignalMutation.java b/src/main/java/avatartranslator/mutation/AddSignalMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..682e41602992188c3fb2a3ae2892275a5585b9a2
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/AddSignalMutation.java
@@ -0,0 +1,74 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+
+/**
+ * Class AddSignalMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class AddSignalMutation extends SignalMutation implements AddMutation {
+
+    public AddSignalMutation(String _name, String _blockName, int _inout) {
+        setName(_name);
+        setBlockName(_blockName);
+        setInOut(_inout);
+        initParameters();
+    }
+    
+    public AvatarSignal createElement(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        AvatarSignal as = new AvatarSignal(getName(), getInOut(), null);
+        for(String[] s : getParameters()) {
+            AvatarAttribute aa = new AvatarAttribute(s[1], AvatarType.getType(s[0]), block, null);
+            as.addParameter(aa);
+        }
+        return as;
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        AvatarSignal as = createElement(_avspec);
+        AvatarBlock block = getBlock(_avspec);
+        block.addSignal(as);
+    }
+}
diff --git a/src/main/java/avatartranslator/mutation/AttributeMutation.java b/src/main/java/avatartranslator/mutation/AttributeMutation.java
index 7a6516e81cecf9ab2f2261f3bd004c2a7e879967..4b876ed6ac95c226e84c030e884e73d1fcbddeab 100644
--- a/src/main/java/avatartranslator/mutation/AttributeMutation.java
+++ b/src/main/java/avatartranslator/mutation/AttributeMutation.java
@@ -1,8 +1,53 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 import java.util.List;
 
+/**
+ * Class AttributeMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public abstract class AttributeMutation extends BlockStructMutation {
 
     private String type;
@@ -45,10 +90,6 @@ public abstract class AttributeMutation extends BlockStructMutation {
 
     public AvatarAttribute findElement(AvatarSpecification _avspec) {
         AvatarBlock block = getBlock(_avspec);
-        List<AvatarAttribute> attr = block.getAttributes();
-        for(AvatarAttribute aa : attr) {
-            if(aa.getName().equals(this.getName())) return aa;
-        }
-        return null;
+        return block.getAvatarAttributeWithName(getName());
     }
 }
\ No newline at end of file
diff --git a/src/main/java/avatartranslator/mutation/AvatarMutation.java b/src/main/java/avatartranslator/mutation/AvatarMutation.java
index d77b2360e19ab03a54719e81c1c4dfdb4546ac02..bc2d80d3926cda811cce97b4962a778cf03e5288 100644
--- a/src/main/java/avatartranslator/mutation/AvatarMutation.java
+++ b/src/main/java/avatartranslator/mutation/AvatarMutation.java
@@ -1,7 +1,52 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 
+/**
+ * Class AvatarMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public abstract class AvatarMutation {
 
     public abstract void apply(AvatarSpecification _avspec);
diff --git a/src/main/java/avatartranslator/mutation/BlockStructMutation.java b/src/main/java/avatartranslator/mutation/BlockStructMutation.java
index 3afb66c96cbcd100d5c49cb0fe386da340ea69df..7f94b2a2135f3c3a73fc17d1aaf4c15122680ea3 100644
--- a/src/main/java/avatartranslator/mutation/BlockStructMutation.java
+++ b/src/main/java/avatartranslator/mutation/BlockStructMutation.java
@@ -1,7 +1,51 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
-
+/**
+ * Class BlockStructMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public abstract class BlockStructMutation extends AvatarMutation {
 
     private String blockName;
diff --git a/src/main/java/avatartranslator/mutation/MdAttributeMutation.java b/src/main/java/avatartranslator/mutation/MdAttributeMutation.java
index eb157a4db7c5a31c7bac898a33668a085ede72bf..e00a032dda24f504e98b3c0da0528ebc01dc76d9 100644
--- a/src/main/java/avatartranslator/mutation/MdAttributeMutation.java
+++ b/src/main/java/avatartranslator/mutation/MdAttributeMutation.java
@@ -1,9 +1,54 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 
 import myutil.TraceManager;
 
+/**
+ * Class MdAttributeMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public class MdAttributeMutation extends AttributeMutation implements MdMutation {
 
     public MdAttributeMutation(String _name, String _initialValue, String _blockName) {
diff --git a/src/main/java/avatartranslator/mutation/MdMethodMutation.java b/src/main/java/avatartranslator/mutation/MdMethodMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..dcdd201963acf2920286428002b405d58d057c13
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/MdMethodMutation.java
@@ -0,0 +1,116 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+
+import myutil.TraceManager;
+
+/**
+ * Class MdMethodMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class MdMethodMutation extends MethodMutation implements MdMutation {
+    
+    private boolean implementationChanged = false;
+    private boolean returnParametersChanged = false;
+    private boolean parametersChanged = false;
+
+    public MdMethodMutation(String _name, String _blockName) {
+        setName(_name);
+        setBlockName(_blockName);
+        initParameters();
+    }
+
+    public MdMethodMutation(String _name, String _blockName, boolean _imp) {
+        this(_name, _blockName);
+        setImplementationProvided(_imp);
+    }
+
+    @Override
+    public void addReturnParameter(String _returnParameter) {
+        returnParametersChanged = true;
+        super.addReturnParameter(_returnParameter);
+    }
+
+    @Override
+    public void addParameter(String[] _parameter) {
+        parametersChanged = true;
+        super.addParameter(_parameter);
+    }
+
+    @Override
+    public void setImplementationProvided(boolean _imp) {
+        implementationChanged = true;
+        super.setImplementationProvided(_imp);
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        AvatarMethod am = findElement(_avspec);
+
+        if(am == null) {
+            TraceManager.addDev("Methode inexistante");
+            return;
+        }
+
+        if(implementationChanged) {
+            am.setImplementationProvided(isImplementationProvided());
+        }
+
+        if(returnParametersChanged) {
+            am.removeReturnAttributes();
+            for(String s : getReturnParameters()) {
+                AvatarAttribute aa = new AvatarAttribute("", AvatarType.getType(s), block, null);
+                am.addReturnParameter(aa);
+            }
+        }
+
+        if(parametersChanged) {
+            am.removeAttributes();
+            for(String[] s : getParameters()) {
+                AvatarAttribute aa = new AvatarAttribute(s[1], AvatarType.getType(s[0]), block, null);
+                am.addParameter(aa);
+            }
+        }
+    }
+}
diff --git a/src/main/java/avatartranslator/mutation/MdMutation.java b/src/main/java/avatartranslator/mutation/MdMutation.java
index bb61796c94870b5eeac3d67f99ee933761ed1741..76819e8be7869e3dd65978eaf78d610f3b3b91f3 100644
--- a/src/main/java/avatartranslator/mutation/MdMutation.java
+++ b/src/main/java/avatartranslator/mutation/MdMutation.java
@@ -1,7 +1,52 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 
+/**
+ * Interface MdMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public interface MdMutation {
 
     AvatarElement findElement(AvatarSpecification _avspec);
diff --git a/src/main/java/avatartranslator/mutation/MdSignalMutation.java b/src/main/java/avatartranslator/mutation/MdSignalMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..2fabb27ae9fc8705efac9a70fdbb8edf661322fe
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/MdSignalMutation.java
@@ -0,0 +1,103 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+
+import myutil.TraceManager;
+
+/**
+ * Class MdSignalMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class MdSignalMutation extends SignalMutation implements MdMutation{
+
+    private boolean inoutChanged = false;
+    private boolean parametersChanged = false;
+
+    public MdSignalMutation(String _name, String _blockName) {
+        setName(_name);
+        setBlockName(_blockName);
+        initParameters();
+    }
+
+    public MdSignalMutation(String _name, String _blockName, int _inout) {
+        this(_name, _blockName);
+        setInOut(_inout);
+    }
+
+    @Override
+    public void addParameter(String[] _parameter) {
+        parametersChanged = true;
+        super.addParameter(_parameter);
+    }
+
+    @Override
+    public void setInOut(int _inout) {
+        inoutChanged = true;
+        super.setInOut(_inout);
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        
+        AvatarBlock block = getBlock(_avspec);
+        AvatarSignal as = findElement(_avspec);
+
+        if(as == null) {
+            TraceManager.addDev("Signal Inexistant");
+            return;
+        }
+
+        if(parametersChanged) {
+            as.removeAttributes();
+            for(String[] s : getParameters()) {
+                AvatarAttribute aa = new AvatarAttribute(s[1], AvatarType.getType(s[0]), block, null);
+                as.addParameter(aa);
+            }
+        }
+
+        if(inoutChanged) {
+            as.setInOut(getInOut());
+        }
+    }
+    
+}
diff --git a/src/main/java/avatartranslator/mutation/MethodMutation.java b/src/main/java/avatartranslator/mutation/MethodMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..e7699ca38948824b10262dca8182d3a64cac0f75
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/MethodMutation.java
@@ -0,0 +1,104 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+import java.util.List;
+import java.util.LinkedList;
+
+/**
+ * Class MethodMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+
+public abstract class MethodMutation extends BlockStructMutation {
+
+    private String name;
+
+    private boolean implementationProvided;
+
+    protected List<String> returnParameters;
+
+    protected List<String[]> parameters;
+
+    public void setName(String _name) {
+        name = _name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void initParameters() {
+        returnParameters = new LinkedList<>();
+        parameters = new LinkedList<>();
+    }
+
+    public void addReturnParameter(String _returnParameter) {
+        returnParameters.add(_returnParameter);
+    }
+
+    public List<String> getReturnParameters() {
+        return returnParameters;
+    }
+
+    public void addParameter(String[] _parameter) {
+        parameters.add(_parameter);
+    }
+
+    public List<String[]> getParameters() {
+        return parameters;
+    }
+
+    public void setImplementationProvided(boolean _imp) {
+        implementationProvided = _imp;
+    }
+
+    public boolean isImplementationProvided() {
+        return implementationProvided;
+    }
+
+    public AvatarMethod findElement(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        return block.getAvatarMethodWithName(getName());
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/avatartranslator/mutation/RmAttributeMutation.java b/src/main/java/avatartranslator/mutation/RmAttributeMutation.java
index 703b42a9054a2e63264965c2de3e670c1e2d6367..6c5fd3e1c93f6f034912c8614b89ac7ae870415a 100644
--- a/src/main/java/avatartranslator/mutation/RmAttributeMutation.java
+++ b/src/main/java/avatartranslator/mutation/RmAttributeMutation.java
@@ -1,10 +1,55 @@
-package avatartranslator.mutation;
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+ package avatartranslator.mutation;
 
 import avatartranslator.*;
 import java.util.List;
 
 import myutil.TraceManager;
 
+/**
+ * Class RmAttributeMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public class RmAttributeMutation extends AttributeMutation implements RmMutation {
 
     public RmAttributeMutation(String _name, String _blockName) {
diff --git a/src/main/java/avatartranslator/mutation/RmMethodMutation.java b/src/main/java/avatartranslator/mutation/RmMethodMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..deea65be9c4f5f1ea4d91500dc36cee90d67bb63
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/RmMethodMutation.java
@@ -0,0 +1,71 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+import java.util.List;
+
+import myutil.TraceManager;
+
+/**
+ * Class RmMethodMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class RmMethodMutation extends MethodMutation implements RmMutation {
+
+    public RmMethodMutation(String _name, String _blockName) {
+        setName(_name);
+        setBlockName(_blockName);
+        initParameters();
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        List<AvatarMethod> meth = block.getMethods();
+        AvatarMethod am = findElement(_avspec);
+        if(am == null) {
+            TraceManager.addDev("Methode inexistante");
+            return;
+        }
+        if(!meth.remove(am)) TraceManager.addDev("Methode dans un super-bloc");
+    }
+}
diff --git a/src/main/java/avatartranslator/mutation/RmMutation.java b/src/main/java/avatartranslator/mutation/RmMutation.java
index 9f647ec4b63fceb2aee259e5b3852cb84e1de178..16f63e18793149f2a301530dc4c4f2107c450c24 100644
--- a/src/main/java/avatartranslator/mutation/RmMutation.java
+++ b/src/main/java/avatartranslator/mutation/RmMutation.java
@@ -1,7 +1,52 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
 package avatartranslator.mutation;
 
 import avatartranslator.*;
 
+/**
+ * Interface RmMutation
+ * Creation: 23/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 23/06/2022
+ */
 public interface RmMutation {
 
     AvatarElement findElement(AvatarSpecification _avspec);
diff --git a/src/main/java/avatartranslator/mutation/RmSignalMutation.java b/src/main/java/avatartranslator/mutation/RmSignalMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..4823320901ee28bd8415a5f44683501bc0218ba5
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/RmSignalMutation.java
@@ -0,0 +1,71 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+import java.util.List;
+
+import myutil.TraceManager;
+
+/**
+ * Class RmSignalMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+public class RmSignalMutation extends SignalMutation implements RmMutation {
+    
+    public RmSignalMutation(String _name, String _blockName) {
+        setName(_name);
+        setBlockName(_blockName);
+        initParameters();
+    }
+
+    public void apply(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        List<AvatarSignal> sign = block.getSignals();
+        AvatarSignal as = findElement(_avspec);
+        if(as == null) {
+            TraceManager.addDev("Signal inexistant");
+            return;
+        }
+        if(!sign.remove(as)) TraceManager.addDev("Signal dans un super-bloc");
+    }
+}
diff --git a/src/main/java/avatartranslator/mutation/SignalMutation.java b/src/main/java/avatartranslator/mutation/SignalMutation.java
new file mode 100644
index 0000000000000000000000000000000000000000..b7a394e898b09f4bf010e3527f83de5d3848b75d
--- /dev/null
+++ b/src/main/java/avatartranslator/mutation/SignalMutation.java
@@ -0,0 +1,71 @@
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ * 
+ * ludovic.apvrille AT enst.fr
+ * 
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ * 
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ * 
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ * 
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ * 
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ */
+
+package avatartranslator.mutation;
+
+import avatartranslator.*;
+
+/**
+ * Class SignalMutation
+ * Creation: 24/06/2022
+ *
+ * @author Léon FRENOT
+ * @version 1.0 24/06/2022
+ */
+
+public abstract class SignalMutation extends MethodMutation {
+    
+    private int inout;
+    
+    public final static int IN = AvatarSignal.IN;
+    public final static int OUT = AvatarSignal.OUT;
+
+    public void setInOut(int _inout) {
+        inout = _inout;
+    }
+
+    public int getInOut() {
+        return inout;
+    }
+
+    @Override
+    public AvatarSignal findElement(AvatarSpecification _avspec) {
+        AvatarBlock block = getBlock(_avspec);
+        return block.getAvatarSignalWithName(getName());
+    }
+}
diff --git a/ttool/src/test/java/avatartranslator/AvatarMutationTests.java b/ttool/src/test/java/avatartranslator/AvatarMutationTests.java
index 75e30f0efe8356c24cfecb84ca00da48b051a420..3f527747fb0055ad3eea65c2ce2db0dba53a8246 100644
--- a/ttool/src/test/java/avatartranslator/AvatarMutationTests.java
+++ b/ttool/src/test/java/avatartranslator/AvatarMutationTests.java
@@ -1,3 +1,47 @@
+/**Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+ *
+ * ludovic.apvrille AT enst.fr
+ *
+ * This software is a computer program whose purpose is to allow the
+ * edition of TURTLE analysis, design and deployment diagrams, to
+ * allow the generation of RT-LOTOS or Java code from this diagram,
+ * and at last to allow the analysis of formal validation traces
+ * obtained from external tools, e.g. RTL from LAAS-CNRS and CADP
+ * from INRIA Rhone-Alpes.
+ *
+ * This software is governed by the CeCILL  license under French law and
+ * abiding by the rules of distribution of free software.  You can  use,
+ * modify and/ or redistribute the software under the terms of the CeCILL
+ * license as circulated by CEA, CNRS and INRIA at the following URL
+ * "http://www.cecill.info".
+ *
+ * As a counterpart to the access to the source code and  rights to copy,
+ * modify and redistribute granted by the license, users are provided only
+ * with a limited warranty  and the software's author,  the holder of the
+ * economic rights,  and the successive licensors  have only  limited
+ * liability.
+ *
+ * In this respect, the user's attention is drawn to the risks associated
+ * with loading,  using,  modifying and/or developing or reproducing the
+ * software by the user in light of its specific status of free software,
+ * that may mean  that it is complicated to manipulate,  and  that  also
+ * therefore means  that it is reserved for developers  and  experienced
+ * professionals having in-depth computer knowledge. Users are therefore
+ * encouraged to load and test the software's suitability as regards their
+ * requirements in conditions enabling the security of their systems and/or
+ * data to be ensured and,  more generally, to use and operate it in the
+ * same conditions as regards security.
+ *
+ * The fact that you are presently reading this means that you have had
+ * knowledge of the CeCILL license and that you accept its terms.
+ *
+ * /**
+ * Class AvatarMutationTests
+ * Creation: 23/06/2022
+ * @version 1.0 23/06/2022
+ * @author Léon FRENOT
+ */
+
 package avatartranslator;
 
 import static org.junit.Assert.*;
@@ -22,6 +66,7 @@ public class AvatarMutationTests {
         block = new AvatarBlock("block", as, null);
         as.addBlock(block);
         AvatarAttribute x1 = new AvatarAttribute("x", AvatarType.INTEGER, block, null);
+
         block.addAttribute(x1);
         x1.setInitialValue("10");
     }
@@ -59,4 +104,139 @@ public class AvatarMutationTests {
         mutation.apply(as);
         assertTrue(block.getAttribute(0).getInitialValue().equals("42"));
     }
+
+    @Test
+    public void testAddMethod() {
+        MethodMutation mutation = new AddMethodMutation("f", "block");
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addReturnParameter("int");
+        mutation.addReturnParameter("bool");
+        mutation.addParameter(tmp);
+
+        MethodMutation mutation2 = new AddMethodMutation("g", "block", true);
+        mutation2.addReturnParameter("int");
+
+        mutation.apply(as);
+        mutation2.apply(as);
+
+        assertTrue(block.getMethods().size() == 2);
+
+        AvatarMethod meth = block.getMethods().get(0);
+        AvatarMethod meth2 = block.getMethods().get(1);
+
+        assertTrue(meth.getName().equals("f"));
+        TraceManager.addDev(meth.toString());
+        assertTrue(meth2.isImplementationProvided());
+    }
+
+    @Test
+    public void testRmMethod() {
+        MethodMutation mutation = new AddMethodMutation("f", "block");
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addReturnParameter("int");
+        mutation.addReturnParameter("bool");
+        mutation.addParameter(tmp);
+        mutation.apply(as);
+
+        MethodMutation mutation2 = new RmMethodMutation("f", "block");
+        mutation2.apply(as);
+
+        
+        assertTrue(block.getMethods().size() == 0);
+    }
+
+    @Test
+    public void testMdMethod() {
+        MethodMutation mutation = new AddMethodMutation("f", "block");
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addReturnParameter("int");
+        mutation.addReturnParameter("bool");
+        mutation.addParameter(tmp);
+        mutation.apply(as);
+
+        MethodMutation mutation2 = new MdMethodMutation("f", "block", true);
+        mutation2.apply(as);
+
+        AvatarMethod meth = block.getMethods().get(0);
+        assertTrue(meth.isImplementationProvided());
+        assertTrue(meth.getListOfAttributes().size() == 1);
+        assertTrue(meth.getListOfReturnAttributes().size() == 2);
+        TraceManager.addDev(meth.toString());
+
+        mutation2 = new MdMethodMutation("f", "block");
+        mutation2.addReturnParameter("int");
+        mutation2.addParameter(tmp2);
+        mutation2.apply(as);
+
+        meth = block.getMethods().get(0);
+        assertTrue(meth.isImplementationProvided());
+        assertTrue(meth.getListOfAttributes().size() == 1);
+        assertTrue(meth.getListOfReturnAttributes().size() == 1);
+        TraceManager.addDev(meth.toString());
+    }
+
+    @Test
+    public void testAddSignal() {
+        SignalMutation mutation = new AddSignalMutation("cin", "block", SignalMutation.IN);
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addParameter(tmp);
+        mutation.addParameter(tmp2);
+
+        SignalMutation mutation2 = new AddSignalMutation("cout", "block", SignalMutation.OUT);
+
+        mutation.apply(as);
+        mutation2.apply(as);
+
+        assertTrue(block.getSignals().size() == 2);
+
+        TraceManager.addDev(block.getSignals().get(0).toString());
+        TraceManager.addDev(block.getSignals().get(1).toString());
+    }
+
+    @Test
+    public void testRmSignal() {
+        SignalMutation mutation = new AddSignalMutation("cin", "block", SignalMutation.IN);
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addParameter(tmp);
+        mutation.addParameter(tmp2);
+        mutation.apply(as);
+        
+        assertTrue(block.getSignals().size() == 1);
+
+        SignalMutation mutation2 = new RmSignalMutation("cin", "block");
+        mutation2.apply(as);
+
+        assertTrue(block.getSignals().size() == 0);
+
+    }
+
+    @Test
+    public void testMdSignal() {
+        SignalMutation mutation = new AddSignalMutation("cin", "block", SignalMutation.IN);
+        String[] tmp = {"int", "x"};
+        String[] tmp2 = {"bool", "y"};
+        mutation.addParameter(tmp);
+        mutation.addParameter(tmp2);
+        mutation.apply(as);
+        
+        assertTrue(block.getSignals().size() == 1);
+
+        SignalMutation mutation2 = new MdSignalMutation("cin", "block", SignalMutation.OUT);
+        mutation2.apply(as);
+
+        assertTrue(block.getSignals().get(0).getInOut() == SignalMutation.OUT);
+
+        SignalMutation mutation3 = new MdSignalMutation("cin", "block");
+        mutation3.addParameter(tmp);
+        mutation3.apply(as);
+
+        assertTrue(block.getSignals().get(0).getListOfAttributes().size() == 1);
+        TraceManager.addDev(block.getSignals().get(0).toString());
+
+    }
 }
\ No newline at end of file