diff --git a/src/main/java/avatartranslator/AvatarBlock.java b/src/main/java/avatartranslator/AvatarBlock.java
index eb55607d19953b39052714cae88e6aa54a8b1c29..4a631bbdd5b69062c49db47a29e8b0797d9c9d3e 100644
--- a/src/main/java/avatartranslator/AvatarBlock.java
+++ b/src/main/java/avatartranslator/AvatarBlock.java
@@ -38,7 +38,7 @@
 
 package avatartranslator;
 
-import myutil.intboolsolver.IBSCompParam;
+import myutil.intboolsolver.IBSParamComp;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
@@ -51,7 +51,7 @@ import java.util.List;
  * @author Ludovic APVRILLE, Raja GATGOUT
  * @version 1.1 01/07/2014
  */
-public class AvatarBlock extends AvatarElement implements AvatarStateMachineOwner,IBSCompParam {
+public class AvatarBlock extends AvatarElement implements AvatarStateMachineOwner, IBSParamComp {
 
     private AvatarBlock father;
     private List<AvatarAttribute> attributes;
diff --git a/src/main/java/avatartranslator/AvatarSpecification.java b/src/main/java/avatartranslator/AvatarSpecification.java
index b8b11246f3b9e8116f27fa39437688b53a670725..55ff4e9944946b6b8a3283e60e2602bedc22de4e 100644
--- a/src/main/java/avatartranslator/AvatarSpecification.java
+++ b/src/main/java/avatartranslator/AvatarSpecification.java
@@ -39,8 +39,7 @@
 package avatartranslator;
 
 import myutil.TraceManager;
-import myutil.intboolsolver.IBSParams;
-import myutil.intboolsolver.IBSSpecParam;
+import myutil.intboolsolver.IBSParamSpec;
 
 import java.util.*;
 
@@ -52,7 +51,7 @@ import java.util.*;
  * @author Ludovic APVRILLE
  * @version 1.0 20/05/2010
  */
-public class AvatarSpecification extends AvatarElement implements IBSSpecParam {
+public class AvatarSpecification extends AvatarElement implements IBSParamSpec {
 
     public final static int UPPAAL_MAX_INT = 32767;
 
diff --git a/src/main/java/avatartranslator/AvatarStateMachineElement.java b/src/main/java/avatartranslator/AvatarStateMachineElement.java
index f5827eab9a6a360f1afac293bb1b82fb6053efc7..18c27f1061527e447c27e6f70ab8188d3bf1154b 100644
--- a/src/main/java/avatartranslator/AvatarStateMachineElement.java
+++ b/src/main/java/avatartranslator/AvatarStateMachineElement.java
@@ -40,7 +40,7 @@
 package avatartranslator;
 
 import myutil.TraceManager;
-import myutil.intboolsolver.IBSStateParam;
+import myutil.intboolsolver.IBSParamState;
 import ui.TGComponent;
 
 import java.util.HashMap;
@@ -55,7 +55,7 @@ import java.util.List;
  * @author Ludovic APVRILLE
  * @version 1.0 20/05/2010
  */
-public abstract class AvatarStateMachineElement extends AvatarElement implements IBSStateParam {
+public abstract class AvatarStateMachineElement extends AvatarElement implements IBSParamState {
 
     protected List<AvatarStateMachineElement> nexts;
     private AvatarState myState;
diff --git a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsSolver.java b/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsSolver.java
index d2160d2929c4b781b0a664ab357073922ed97b68..770d7546af6452656f08e0c6b0cbc6507b40d3e4 100644
--- a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsSolver.java
+++ b/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsSolver.java
@@ -13,11 +13,11 @@ public class AvatarIBSAbsSolver extends IBSolver<
         AvatarStateMachineElement,
         SpecificationState,
         SpecificationBlock,
-        AvatarIBSAbsAttribute,
-        AvatarIBSAbsAttributeClass
+        AvatarIBSStdAttribute,
+        AvatarIBSStdAttributeClass
         > {
     public AvatarIBSAbsSolver() {
-        super(new AvatarIBSAbsAttributeClass());
+        super(new AvatarIBSStdAttributeClass());
     }
     void main(String[] args) { return;}
 }
diff --git a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttribute.java b/src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttribute.java
similarity index 99%
rename from src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttribute.java
rename to src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttribute.java
index d315ef456fa0e944de8390b113b396581756ac31..4d2a7213499fcbb994ae84fdb713338529381216 100644
--- a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttribute.java
+++ b/src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttribute.java
@@ -40,7 +40,7 @@ package avatartranslator.intboolsolver;
 import avatartranslator.*;
 import avatartranslator.modelchecker.SpecificationBlock;
 import avatartranslator.modelchecker.SpecificationState;
-import myutil.intboolsolver.IBSAbsAttribute;
+import myutil.intboolsolver.IBSStdAttribute;
 import myutil.intboolsolver.IBSAttributeTypes;
 
 /**
@@ -59,7 +59,7 @@ import myutil.intboolsolver.IBSAttributeTypes;
 // - AvatarSpecificationState must extend AvatarIBSAbstractAttribute.SpecificationState
 // - AvatarSpecificationBlock must extend AvatarIBSAbstractAttribute.SpecificationBlock 
 
-public class AvatarIBSAbsAttribute extends IBSAbsAttribute<
+public class AvatarIBSStdAttribute extends IBSStdAttribute<
         AvatarSpecification,
         AvatarBlock,
         AvatarStateMachineElement,
diff --git a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttributeClass.java b/src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttributeClass.java
similarity index 91%
rename from src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttributeClass.java
rename to src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttributeClass.java
index 0fe2fdac8157d54154f5d6355911cfd76fe76271..d67a3fa213dd8bd99ad1ac7054f7dd57ab83285b 100644
--- a/src/main/java/avatartranslator/intboolsolver/AvatarIBSAbsAttributeClass.java
+++ b/src/main/java/avatartranslator/intboolsolver/AvatarIBSStdAttributeClass.java
@@ -6,20 +6,20 @@ import avatartranslator.AvatarSpecification;
 import avatartranslator.AvatarStateMachineElement;
 import avatartranslator.modelchecker.SpecificationBlock;
 import avatartranslator.modelchecker.SpecificationState;
-import myutil.intboolsolver.IBSAbsAttributeClass;
+import myutil.intboolsolver.IBSStdAttributeClass;
 import myutil.intboolsolver.IBSAttributeTypes;
 import myutil.intboolsolver.IBSTypedAttribute;
 
 import java.util.HashMap;
 import java.util.Map;
 
-public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
+public class AvatarIBSStdAttributeClass extends IBSStdAttributeClass<
         AvatarSpecification,
         AvatarBlock,
         AvatarStateMachineElement,
         SpecificationState,
         SpecificationBlock,
-        AvatarIBSAbsAttribute
+        AvatarIBSStdAttribute
         > {
     private static Map<AvatarElement, IBSTypedAttribute> attributesMap;
     // handling already covered attributes (memorisation)
@@ -28,12 +28,12 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
     private static String findString = "";
     private static AvatarElement keyElement;
 
-    AvatarIBSAbsAttributeClass(){}
+    AvatarIBSStdAttributeClass(){}
 
     public IBSTypedAttribute getTypedAttribute(AvatarSpecification _spec, String _s) {
         IBSTypedAttribute a = findAttribute(_spec, _s);
         if (a == null) {
-            AvatarIBSAbsAttribute x = new AvatarIBSAbsAttribute(); // replaced...
+            AvatarIBSStdAttribute x = new AvatarIBSStdAttribute(); // replaced...
             x.classInitAttribute(_spec,_s);
             switch (x.getType()) {
                 case IBSAttributeTypes.NullAttr:{
@@ -57,7 +57,7 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
     public IBSTypedAttribute getTypedAttribute(AvatarBlock _comp, String _s) {
         IBSTypedAttribute a = findAttribute(_comp, _s);
         if (a == null) {
-            AvatarIBSAbsAttribute x = new AvatarIBSAbsAttribute(); // replaced
+            AvatarIBSStdAttribute x = new AvatarIBSStdAttribute(); // replaced
             x.classInitAttribute(_comp,_s);
             switch (x.getType()) {
                 case IBSAttributeTypes.NullAttr:{
@@ -80,7 +80,7 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
     public IBSTypedAttribute getTypedAttribute(AvatarBlock _comp, AvatarStateMachineElement _state) {
         IBSTypedAttribute a = findAttribute(_comp, _state);
         if (a == null) {
-            AvatarIBSAbsAttribute x = new AvatarIBSAbsAttribute(); // replaced
+            AvatarIBSStdAttribute x = new AvatarIBSStdAttribute(); // replaced
             x.classInitAttribute(_comp,_state);
             switch (x.getType()) {
                 case IBSAttributeTypes.NullAttr:{
@@ -102,14 +102,14 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
 
 
     public boolean instanceOfMe(int _type, Object _val) {
-        return (_val instanceof AvatarIBSAbsAttribute &&
-                _type == ((AvatarIBSAbsAttribute)_val).getType());
+        return (_val instanceof AvatarIBSStdAttribute &&
+                _type == ((AvatarIBSStdAttribute)_val).getType());
     }
 
     public boolean instanceOfMe(IBSTypedAttribute _ta) {
         Object v = _ta.getVal();
-        return (v instanceof AvatarIBSAbsAttribute &&
-                _ta.getType() == ((AvatarIBSAbsAttribute)v).getType());
+        return (v instanceof AvatarIBSStdAttribute &&
+                _ta.getType() == ((AvatarIBSStdAttribute)v).getType());
     }
 
 
@@ -129,7 +129,7 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
             IBSTypedAttribute ta = attributesMap.get(ae);
             if (ta.isAttribute()){
                 //might be uninitialized
-                ((AvatarIBSAbsAttribute)(ta.getVal())).linkComp(_spec);
+                ((AvatarIBSStdAttribute)(ta.getVal())).linkComp(_spec);
             }
             return ta;
         }
@@ -146,7 +146,7 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
         else
             ae = getElement(_s, _spec);
         if (ae != null){
-            if (_att.isAttribute() && !(_att.getVal() instanceof AvatarIBSAbsAttribute))
+            if (_att.isAttribute() && !(_att.getVal() instanceof AvatarIBSStdAttribute))
                 return; // should be an error
             attributesMap.put(ae, _att);
         }
@@ -172,7 +172,7 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
         else
             ae = getElement(_s, _comp);
         if (ae != null){
-            if (_att.isAttribute() && !(_att.getVal() instanceof AvatarIBSAbsAttribute))
+            if (_att.isAttribute() && !(_att.getVal() instanceof AvatarIBSStdAttribute))
                 return; // should be an error
             attributesMap.put(ae, _att);
         }
@@ -191,8 +191,8 @@ public class AvatarIBSAbsAttributeClass extends IBSAbsAttributeClass<
         if (_att == null ||
                 (_att.isAttribute() &&
                         (!(instanceOfMe(_att)) ||
-                                !((AvatarIBSAbsAttribute) _att.getVal()).isState() ||
-                                _state != ((AvatarIBSAbsAttribute) _att.getVal()).state
+                                !((AvatarIBSStdAttribute) _att.getVal()).isState() ||
+                                _state != ((AvatarIBSStdAttribute) _att.getVal()).state
                         )
                 )
         )
diff --git a/src/main/java/avatartranslator/modelchecker/SpecificationBlock.java b/src/main/java/avatartranslator/modelchecker/SpecificationBlock.java
index f8ad6664a55b130ac052add089629e957b8d9df6..8b62c67ed70b38d0ee7ba8f209e5b6af8d20ca87 100644
--- a/src/main/java/avatartranslator/modelchecker/SpecificationBlock.java
+++ b/src/main/java/avatartranslator/modelchecker/SpecificationBlock.java
@@ -40,7 +40,7 @@ package avatartranslator.modelchecker;
 
 import avatartranslator.AvatarAttribute;
 import avatartranslator.AvatarBlock;
-import myutil.intboolsolver.IBSCompStateParam;
+import myutil.intboolsolver.IBSParamCompState;
 
 import java.util.Arrays;
 import java.util.List;
@@ -54,7 +54,7 @@ import java.util.Vector;
  * @author Ludovic APVRILLE
  * @version 1.0 31/05/2016
  */
-public class SpecificationBlock implements IBSCompStateParam {
+public class SpecificationBlock implements IBSParamCompState {
 
     public static final int HEADER_VALUES = 3;
 
diff --git a/src/main/java/avatartranslator/modelchecker/SpecificationState.java b/src/main/java/avatartranslator/modelchecker/SpecificationState.java
index 85af9a621e324325f56b38b87a664eb68505057b..70cd150317cf56994d65f18fa85a7785747822ea 100644
--- a/src/main/java/avatartranslator/modelchecker/SpecificationState.java
+++ b/src/main/java/avatartranslator/modelchecker/SpecificationState.java
@@ -45,9 +45,8 @@ package avatartranslator.modelchecker;
 
 import avatartranslator.AvatarBlock;
 import avatartranslator.AvatarSpecification;
-import myutil.intboolsolver.IBSSpecStateParam;
+import myutil.intboolsolver.IBSParamSpecState;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedList;
 
@@ -58,7 +57,7 @@ import java.util.LinkedList;
    * @version 1.0 31/05/2016
    * @author Ludovic APVRILLE
  */
-public class SpecificationState implements IBSSpecStateParam, Comparable<SpecificationState>   {
+public class SpecificationState implements IBSParamSpecState, Comparable<SpecificationState>   {
     public SpecificationBlock [] blocks;
     public int hashValue;
     public boolean hashComputed;
diff --git a/src/main/java/myutil/intboolsolver/IBSAttribute.java b/src/main/java/myutil/intboolsolver/IBSAttribute.java
index 9798d734259c009c062e963a6b3788a1ddf1b1ef..8f6f6185b4497b1bb8b39d4917678fa4c9f657fd 100644
--- a/src/main/java/myutil/intboolsolver/IBSAttribute.java
+++ b/src/main/java/myutil/intboolsolver/IBSAttribute.java
@@ -1,4 +1,4 @@
- /* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
+/* Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille
  *
  * ludovic.apvrille AT enst.fr
  *
@@ -35,24 +35,30 @@
  * 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 myutil.intboolsolver;
-// import intboolsolver.IBSolver; // usefull in implementations
+package myutil.intboolsolver;
 
 /**
-   * Class IBSAttribute
-   * Creation: 27/02/2023
-   * @version 0.0 27/02/2023
-   *
-   * @author Sophie Coudert
+ * Interface IBSAttribute, describing the "dynamic" generic part of open
+ * leaves of {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ *  <p> This interface describes the features required from the
+ *  instances of {@link myutil.intboolsolver.IBSolver IBSolver}
+ *  attributes. Its implementations are intended to instantiate
+ *  the {@code ATT} parameter of the generic
+ *  {@link myutil.intboolsolver.IBSolver IBSolver} </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert  (rewrite from Alessandro TEMPIA CALVINO)
  */
 
 
-interface IBSAttribute<
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam
+public interface IBSAttribute<
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState
         > {
     // returns a type from IBSolver
     // (i.e. among IMMEDIATE_(BOOL,INT,NO))
diff --git a/src/main/java/myutil/intboolsolver/IBSAttributeClass.java b/src/main/java/myutil/intboolsolver/IBSAttributeClass.java
index 2fe3d6fe23e18c56227f5f30666afceb9a779aad..665b921d42eb1076cc0470f5405f340f44e806bc 100644
--- a/src/main/java/myutil/intboolsolver/IBSAttributeClass.java
+++ b/src/main/java/myutil/intboolsolver/IBSAttributeClass.java
@@ -1,11 +1,66 @@
+/* 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 myutil.intboolsolver;
 
+/**
+ * class IBSAttribute (interface), describing the "static" generic part
+ * shared by all open leaves of {@link myutil.intboolsolver.IBSolver
+ * IBSolver}.
+ * Creation: 07/03/2023
+ *
+ *  <p> This interface describes the features required from the
+ *  class of {@link myutil.intboolsolver.IBSolver IBSolver}
+ *  attributes (methods that do not depend on attribute instances).
+ *  Its implementations are intended to instantiate
+ *  the {@code AtC} parameter of the generic
+ *  {@link myutil.intboolsolver.IBSolver IBSolver} </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert  (rewrite from Alessandro TEMPIA CALVINO)
+ */
+
 public class IBSAttributeClass<
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam,
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState,
         Att extends IBSAttribute<Spec,Comp,State,SpecState,CompState>
         > {
      public IBSTypedAttribute getTypedAttribute(Spec _spec, String _s) {
diff --git a/src/main/java/myutil/intboolsolver/IBSAttributeTypes.java b/src/main/java/myutil/intboolsolver/IBSAttributeTypes.java
index 6f6ab4bc6dd8c4f10ea404f2db89e2d598d70ca7..62fed41751144f7a3ad1662b8828ccc07044f614 100644
--- a/src/main/java/myutil/intboolsolver/IBSAttributeTypes.java
+++ b/src/main/java/myutil/intboolsolver/IBSAttributeTypes.java
@@ -1,4 +1,49 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * The type of results that can be returned when trying to build
+ * attributes.
+ * Creation: 07/03/2023
+ * @author Sophie Coudert
+ */
+
 public final class IBSAttributeTypes {
     public static final int NullAttr =0;  // val is null
     public static final int BoolConst =1;  // val is an Int integer
diff --git a/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttribute.java b/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttribute.java
index 9773e0209d52e0a9246c755ffb73a36f86e3de67..ee83205c461403ea1e87054b0d6373edb31f1f9b 100644
--- a/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttribute.java
+++ b/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttribute.java
@@ -1,11 +1,11 @@
 package myutil.intboolsolver;
 
-public class IBSClosedFormulaAttribute extends IBSAbsAttribute<
-        IBSSpecParam,
-        IBSCompParam,
-        IBSStateParam,
-        IBSSpecStateParam,
-        IBSCompStateParam
+public class IBSClosedFormulaAttribute extends IBSStdAttribute<
+        IBSParamSpec,
+        IBSParamComp,
+        IBSParamState,
+        IBSParamSpecState,
+        IBSParamCompState
         > {
     IBSClosedFormulaAttribute(){}
 }
diff --git a/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttributeClass.java b/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttributeClass.java
index 1b5683e6a3109cdf06e0a9a7d97de95305432ee5..a4e2e3c048677a9c1551158d7b81a9a0d6bb0ca9 100644
--- a/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttributeClass.java
+++ b/src/main/java/myutil/intboolsolver/IBSClosedFormulaAttributeClass.java
@@ -1,12 +1,12 @@
 package myutil.intboolsolver;
 
-public class IBSClosedFormulaAttributeClass  extends IBSAbsAttributeClass<
-        IBSSpecParam,
-        IBSCompParam,
-        IBSStateParam,
-        IBSSpecStateParam,
-        IBSCompStateParam,
+public class IBSClosedFormulaAttributeClass  extends IBSStdAttributeClass<
+        IBSParamSpec,
+        IBSParamComp,
+        IBSParamState,
+        IBSParamSpecState,
+        IBSParamCompState,
         IBSClosedFormulaAttribute
-        >  {
+        > {
     IBSClosedFormulaAttributeClass(){}
 }
diff --git a/src/main/java/myutil/intboolsolver/IBSClosedFormulaSolver.java b/src/main/java/myutil/intboolsolver/IBSClosedFormulaSolver.java
index 245bfdb1dcf69a380cc48f5833e5b304a5f102f6..34e73a53bd105150e03ba3f3881f3a5d6622572f 100644
--- a/src/main/java/myutil/intboolsolver/IBSClosedFormulaSolver.java
+++ b/src/main/java/myutil/intboolsolver/IBSClosedFormulaSolver.java
@@ -1,11 +1,11 @@
 package myutil.intboolsolver;
 
 public class IBSClosedFormulaSolver extends IBSolver <
-        IBSSpecParam,
-        IBSCompParam,
-        IBSStateParam,
-        IBSSpecStateParam,
-        IBSCompStateParam,
+        IBSParamSpec,
+        IBSParamComp,
+        IBSParamState,
+        IBSParamSpecState,
+        IBSParamCompState,
         IBSClosedFormulaAttribute,
         IBSClosedFormulaAttributeClass > {
         IBSClosedFormulaSolver() {
diff --git a/src/main/java/myutil/intboolsolver/IBSCompParam.java b/src/main/java/myutil/intboolsolver/IBSCompParam.java
deleted file mode 100644
index 6b7245130b4fe0ef4c4e5cc40d559dba63eff33b..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSCompParam.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package myutil.intboolsolver;
-
-public interface IBSCompParam {
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSCompStateParam.java b/src/main/java/myutil/intboolsolver/IBSCompStateParam.java
deleted file mode 100644
index 99a511a4d951c43d6ce1988087905e135fc2cd42..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSCompStateParam.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package myutil.intboolsolver;
-
-public interface  IBSCompStateParam {
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSParamComp.java b/src/main/java/myutil/intboolsolver/IBSParamComp.java
new file mode 100644
index 0000000000000000000000000000000000000000..87d1d843a0c91477df5cdaa01bfb9e674c4c6a45
--- /dev/null
+++ b/src/main/java/myutil/intboolsolver/IBSParamComp.java
@@ -0,0 +1,58 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * Interface IBSParamComp, to be implemented by classes intended to
+ * instantiate the {@code Comp} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ * <p> The {@code Comp} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver} may be instantiated
+ * by any class without modification, except that the class must implement
+ * this interface and none of the other IBSParamXXX interface.
+ * </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
+
+public interface IBSParamComp {
+}
diff --git a/src/main/java/myutil/intboolsolver/IBSParamCompState.java b/src/main/java/myutil/intboolsolver/IBSParamCompState.java
new file mode 100644
index 0000000000000000000000000000000000000000..986c9f755db5c88f99cf1ea625084a02353884ce
--- /dev/null
+++ b/src/main/java/myutil/intboolsolver/IBSParamCompState.java
@@ -0,0 +1,58 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * Interface IBSParamCompState, to be implemented by classes intended to
+ * instantiate the {@code CompState} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ * <p> The {@code CompState} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver} may be instantiated
+ * by any class without modification, except that the class must implement
+ * this interface and none of the other IBSParamXXX interface.
+ * </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
+
+public interface IBSParamCompState {
+}
diff --git a/src/main/java/myutil/intboolsolver/IBSParamSpec.java b/src/main/java/myutil/intboolsolver/IBSParamSpec.java
new file mode 100644
index 0000000000000000000000000000000000000000..b0db023b540163050abd49b38d25e71c5a02287c
--- /dev/null
+++ b/src/main/java/myutil/intboolsolver/IBSParamSpec.java
@@ -0,0 +1,58 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * Interface IBSParamSpec, to be implemented by classes intended to
+ * instantiate the {@code Spec} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ * <p> The {@code Spec} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver} may be instantiated
+ * by any class without modification, except that the class must implement
+ * this interface and none of the other IBSParamXXX interface.
+ * </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
+
+public interface IBSParamSpec {
+}
diff --git a/src/main/java/myutil/intboolsolver/IBSParamSpecState.java b/src/main/java/myutil/intboolsolver/IBSParamSpecState.java
new file mode 100644
index 0000000000000000000000000000000000000000..d24133e41f7dbe478efc147111e3ca6b2e9211d1
--- /dev/null
+++ b/src/main/java/myutil/intboolsolver/IBSParamSpecState.java
@@ -0,0 +1,57 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * Interface IBSParamSpecState, to be implemented by classes intended to
+ * instantiate the {@code SpecState} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ * <p> The {@code SpecState} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver} may be instantiated
+ * by any class without modification, except that the class must implement
+ * this interface and none of the other IBSParamXXX interface.
+ * </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
+public interface IBSParamSpecState {
+}
diff --git a/src/main/java/myutil/intboolsolver/IBSParamState.java b/src/main/java/myutil/intboolsolver/IBSParamState.java
new file mode 100644
index 0000000000000000000000000000000000000000..6d17cfcd52c166c80689442e55f17a274f11b37a
--- /dev/null
+++ b/src/main/java/myutil/intboolsolver/IBSParamState.java
@@ -0,0 +1,58 @@
+/* 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 myutil.intboolsolver;
+
+/**
+ * Interface IBSParamState, to be implemented by classes intended to
+ * instantiate the {@code State} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver}.
+ * Creation: 07/03/2023
+ *
+ * <p> The {@code State} parameter of
+ * {@link myutil.intboolsolver.IBSolver IBSolver} may be instantiated
+ * by any class without modification, except that the class must implement
+ * this interface and none of the other IBSParamXXX interface.
+ * </p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
+
+public interface IBSParamState {
+}
diff --git a/src/main/java/myutil/intboolsolver/IBSParams.java b/src/main/java/myutil/intboolsolver/IBSParams.java
deleted file mode 100644
index f26f2b57cb425eb6f0736355d4b648c4ae73269b..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSParams.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package myutil.intboolsolver;
-
-public class IBSParams {
-    public class Spec{}
-    public class Comp{}
-    public class State{}
-    public class SpecState{}
-    public class CompState{}
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSSpecParam.java b/src/main/java/myutil/intboolsolver/IBSSpecParam.java
deleted file mode 100644
index c6dcfc7e981928804de0b3a5044d14b0c2e13bad..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSSpecParam.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package myutil.intboolsolver;
-
-public interface  IBSSpecParam {
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSSpecStateParam.java b/src/main/java/myutil/intboolsolver/IBSSpecStateParam.java
deleted file mode 100644
index 60127d62112c27cb53b0c0c96fdc5456d95e563e..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSSpecStateParam.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package myutil.intboolsolver;
-
-public interface  IBSSpecStateParam {
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSStateParam.java b/src/main/java/myutil/intboolsolver/IBSStateParam.java
deleted file mode 100644
index f961048043b6a38d65ec53e005ae73651c9ef164..0000000000000000000000000000000000000000
--- a/src/main/java/myutil/intboolsolver/IBSStateParam.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package myutil.intboolsolver;
-
-public interface  IBSStateParam {
-}
diff --git a/src/main/java/myutil/intboolsolver/IBSAbsAttribute.java b/src/main/java/myutil/intboolsolver/IBSStdAttribute.java
similarity index 85%
rename from src/main/java/myutil/intboolsolver/IBSAbsAttribute.java
rename to src/main/java/myutil/intboolsolver/IBSStdAttribute.java
index 75cf5fe9d3511855ae353315eb3501e051a7d88b..8d67540793519050e4fe0206a8d17821e15c09b6 100644
--- a/src/main/java/myutil/intboolsolver/IBSAbsAttribute.java
+++ b/src/main/java/myutil/intboolsolver/IBSStdAttribute.java
@@ -35,25 +35,37 @@
  * 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 myutil.intboolsolver;
+// import intboolsolver.IBSolver; // usefull in implementations
 
 /**
- * Class IBSAbstractAttribute
- * This Class is a documented interface for implementing IBSAttribute.
- * It provides some partial implementation, tools and rules for extention.
- * Creation: 27/02/2023
+ * Class IBSStdAttribute (should be abstract), partially
+ * implementing {@link myutil.intboolsolver.IBSAttribute
+ * IBSAttribute} for systems with states as boolean leaves.
+ * Creation: 07/03/2023
+ *
+ * <p> This class (together with
+ * {@link myutil.intboolsolver.IBSStdAttributeClass)
+ * IBSStdAttributeClass}) is a step toward an instantiation
+ * of the solver for systems with states as boolean leaves.</p>
+ * The (very) partial implementation provided here is  sometime
+ * provided as code in comments that must be copied in final
+ * instantiation (when genericity disappear).</p>
+ * <p> To instantiate the solver using this approach, a fully
+ * implemented extension of this class must be provided.
+ * Comments in the file say what remains to implement
+ * (in the futur, abstraction, for automatic checking...).</p>
  *
+ * @version 0.1 07/03/2023
  * @author Sophie Coudert (rewrite from Alessandro TEMPIA CALVINO)
- * @version 0.0 27/02/2023
  */
 
-public class IBSAbsAttribute<
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam
+public class IBSStdAttribute<
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState
         > implements IBSAttribute<
         Spec ,
         Comp ,
diff --git a/src/main/java/myutil/intboolsolver/IBSAbsAttributeClass.java b/src/main/java/myutil/intboolsolver/IBSStdAttributeClass.java
similarity index 60%
rename from src/main/java/myutil/intboolsolver/IBSAbsAttributeClass.java
rename to src/main/java/myutil/intboolsolver/IBSStdAttributeClass.java
index 955965db6f9e1a204cfd67787c2f6461a06146a1..8ce7bc0f85d9da24d60ba17f40f7b0115fbc38b5 100644
--- a/src/main/java/myutil/intboolsolver/IBSAbsAttributeClass.java
+++ b/src/main/java/myutil/intboolsolver/IBSStdAttributeClass.java
@@ -1,11 +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 myutil.intboolsolver;
 
-public class IBSAbsAttributeClass<
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam,
+/**
+ * Class IBSStdAttributeClass (should be abstract), partially
+ * implementing {@link myutil.intboolsolver.IBSAttributeClass
+ * IBSAttributeClass} for systems with states as boolean leaves.
+ * Creation: 07/03/2023
+ *
+ * <p> This class (together with
+ * {@link myutil.intboolsolver.IBSStdAttribute)
+ * IBSStdAttribute}) is a step toward an instantiation
+ * of the solver for systems with states as boolean leaves.</p>
+ * The (very) partial implementation provided here is  sometime
+ * provided as code in comments that must be copied in final
+ * instantiation (when genericity disappear).</p>
+ * <p> To instantiate the solver using this approach, a fully
+ * implemented extension of this class must be provided.
+ * Comments in the file say what remains to implement
+ * (in the futur, abstraction, for automatic checking...).</p>
+ *
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert (rewrite from Alessandro TEMPIA CALVINO)
+ */
+
+public class IBSStdAttributeClass<
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState,
         Att extends IBSAttribute<Spec,Comp,State,SpecState,CompState>
         > extends IBSAttributeClass <
         Spec ,
diff --git a/src/main/java/myutil/intboolsolver/IBSTypedAttribute.java b/src/main/java/myutil/intboolsolver/IBSTypedAttribute.java
index f742122a6f20bbed0bc985b33dce1a710f6ab543..ee3c8319b8f80b77500c40d18f2782061f649d61 100644
--- a/src/main/java/myutil/intboolsolver/IBSTypedAttribute.java
+++ b/src/main/java/myutil/intboolsolver/IBSTypedAttribute.java
@@ -1,4 +1,46 @@
+/* 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 myutil.intboolsolver;
+/**
+ * A class to allow parsing to return different types of result.
+ * @version 0.1 07/03/2023
+ * @author Sophie Coudert
+ */
 
 public class IBSTypedAttribute {
     private Object val = null;
diff --git a/src/main/java/myutil/intboolsolver/IBSolver.java b/src/main/java/myutil/intboolsolver/IBSolver.java
index b8ee5e9aa8f083902362eb189e0527501773400e..afc70289b8631a258f99ea812f1fbb7fb1f8d995 100644
--- a/src/main/java/myutil/intboolsolver/IBSolver.java
+++ b/src/main/java/myutil/intboolsolver/IBSolver.java
@@ -37,14 +37,16 @@
  */
 
 package myutil.intboolsolver;
-
-import java.util.HashMap;
-import java.util.Map;
 import java.util.HashSet;
-import myutil.intboolsolver.IBSAttribute;
+
 /**
- * Class IBSolver
- * Integer/boolean Expression Solver
+ * Class IBSolver implements the generic solver.
+ *
+ * <p>For general information about the solver, see
+ * {@link myutil.intboolsolver package page}.</p>
+ *
+ * <p>For documentation about exported API, see
+ * {@link myutil.intboolsolver.IBSolverAPI IBSolverAPI}</p>
  * Creation: 27/02/2023
  *
  * @author Sophie Coudert (rewrite from Alessandro TEMPIA CALVINO)
@@ -52,11 +54,11 @@ import myutil.intboolsolver.IBSAttribute;
  */
 
 public class IBSolver <
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam,
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState,
         ATT extends IBSAttribute<Spec,Comp,State,SpecState,CompState>,
         AtC extends IBSAttributeClass<Spec,Comp,State,SpecState,CompState,ATT>
         > {
diff --git a/src/main/java/myutil/intboolsolver/IBSolverInterface.java b/src/main/java/myutil/intboolsolver/IBSolverAPI.java
similarity index 91%
rename from src/main/java/myutil/intboolsolver/IBSolverInterface.java
rename to src/main/java/myutil/intboolsolver/IBSolverAPI.java
index 997ac0b945b4b95e14ece34406b40739fe6222c1..1362fe9e33d753bf8f816a02626797fd6619bd30 100644
--- a/src/main/java/myutil/intboolsolver/IBSolverInterface.java
+++ b/src/main/java/myutil/intboolsolver/IBSolverAPI.java
@@ -37,24 +37,23 @@
  */
 
 package myutil.intboolsolver;
-
 import java.util.HashSet;
 
 /**
- * Class IBSolverInterface
- * Integer/boolean Expression Solver features. For documentation, not for use...
+ * Class IBSolverAPI
+ * Integer/boolean Expression Solver API (exported features). For documentation, not for use...
  * Creation: /03_2023
  *
  * @author Sophie Coudert (rewrite from Alessandro TEMPIA CALVINO)
  * @version 0.0 27/02/2023
  */
 
-public abstract class IBSolverInterface<
-        Spec extends IBSSpecParam,
-        Comp extends IBSCompParam,
-        State extends IBSStateParam,
-        SpecState extends IBSSpecStateParam,
-        CompState extends IBSCompStateParam,
+public abstract class IBSolverAPI<
+        Spec extends IBSParamSpec,
+        Comp extends IBSParamComp,
+        State extends IBSParamState,
+        SpecState extends IBSParamSpecState,
+        CompState extends IBSParamCompState,
         ATT extends IBSAttribute<Spec,Comp,State,SpecState,CompState>,
         AtC extends IBSAttributeClass<Spec,Comp,State,SpecState,CompState,ATT>
         > { 
diff --git a/src/main/java/myutil/intboolsolver/package-info.java b/src/main/java/myutil/intboolsolver/package-info.java
index 39c85045cffdfc64b46c4bd99457e01c9ad2c3f9..2c00d3b4ac72428ec3fccba7655f8b49e8016259 100644
--- a/src/main/java/myutil/intboolsolver/package-info.java
+++ b/src/main/java/myutil/intboolsolver/package-info.java
@@ -53,8 +53,8 @@
  *
  * </p>
  * <ul>
- *     <li> {@link myutil.intboolsolver.IBSolverInterface
- *     IBSolverInterface} provides documentation about the functions
+ *     <li> {@link myutil.intboolsolver.IBSolverAPI
+ *     IBSolverAPI} provides documentation about the functions
  *     exported by the solver after it has been instantiated.
  *     </li>
  *     <li> <p>{@link myutil.intboolsolver.IBSolver IBSolver} is the solver
@@ -68,68 +68,76 @@
  *     provide:</b></p>
  *     <ul>
  *         <li> <p>{@code Spec} class, which must implement {@link
- *         myutil.intboolsolver.IBSSpecParam IBSSpecParam}: The class of
+ *         myutil.intboolsolver.IBSParamSpec IBSParamSpec}: The class of
  *         global system specifications, which intuitively associates
  *         leave structures to (spec-dedicated) leave identifiers).</p>
  *         </li>
  *         <li> <p>{@code Comp} class, which <b>must implement</b> {@link
- *         myutil.intboolsolver.IBSCompParam IBSCompParam}: the class
+ *         myutil.intboolsolver.IBSParamComp IBSParamComp}: the class
  *         of system components, which intuitively associates leave
  *         structures to (comp-dedicated) leave identifiers).</p>
  *         </li>
- *         <li> <p>{@code SpecState} class, which <b>must implement</b>
- *         {@link myutil.intboolsolver.IBSSpecStateParam
- *         IBSSpecStateParam}: the class of specification state, which
- *         intuitively associates leaves to int/bool values.</p>
- *         </li>
- *         <li> <p>{@code CompState} class, which <b>must implement</b>
- *         {@link myutil.intboolsolver.IBSCompStateParam
- *         IBSCompStateParam}: the class of component states, which
- *         intuitively associates leaves to int/bool values.</p>
- *         </li>
  *         <li> <p>{@code State} class, which <b>must implement</b>
- *         {@link myutil.intboolsolver.IBSStateParam IBSStateParam}:
+ *         {@link myutil.intboolsolver.IBSParamState IBSParamState}:
  *         a class of states. It is intended to receive state machine
  *         states in provided extensions but can be used another way
  *         (in the provided extensions, there are state leaves that
  *         may be true or false in different contexts...).</p>
  *         </li>
+ *         <li> <p>{@code SpecState} class, which <b>must implement</b>
+ *         {@link myutil.intboolsolver.IBSParamSpecState
+ *         IBSParamSpecState}: the class of specification state, which
+ *         intuitively associates leaves to int/bool values.</p>
+ *         </li>
+ *         <li> <p>{@code CompState} class, which <b>must implement</b>
+ *         {@link myutil.intboolsolver.IBSParamCompState
+ *         IBSParamCompState}: the class of component states, which
+ *         intuitively associates leaves to int/bool values.</p>
+ *         </li>
  *     </ul>
  *     <p><b>WARNING!!</b> A successful instantiation requires that
  *     class <i>xxx</i> (with <i>xxx</i> among {@code Spec}, {@code Comp},
  *     {@code SpecState}, {@code CompState} and {@code State}) does
  *     not implement any IBS<i>yyy</i>Param with <i>yyy</i>
  *     &#8800;  <i>xxx</i>.</p>
- *     <p>The structure of leaf expressions is then instantiation
- *     dependent and relies on "attribute" parameters which must
- *     also be provided (themselves parametrized by  the five classes
- *     above) while instantiating. Attribute parameters are decomposed
- *     into two  classes:</p>
+ *     <p>{@link myutil.intboolsolver.IBSParamSpec IBSParamSpec},
+ *     {@link myutil.intboolsolver.IBSParamComp IBSParamComp},
+ *     {@link myutil.intboolsolver.IBSParamState IBSParamState},
+ *     {@link myutil.intboolsolver.IBSParamSpecState IBSParamSpecState}
+ *     and
+ *     {@link myutil.intboolsolver.IBSParamCompState IBSParamCompState}
+ *     can be used as default parameters to instanciate solvers that do
+ *     not implement the corresponding concepts.</p>
+ *     <p>The structure of leaf expressions is  instantiation dependent.
+ *     Thus it is parametrized by "attribute" parameters (themselves
+ *     parametrized by  the five classes above) for which an
+ *     implementation must also be provided in order to instantiate
+ *     {@link myutil.intboolsolver.IBSolver IBSolver}. Attribute
+ *     parameters are decomposed into two classes:</p>
  *     <ul>
- *         <li> <p>an "attribute class" class which contains all the
- *         ("static") methods that do not depend on attribute
- *         instances</p>
- *         </li>
- *         <li> <p>an "attribute class" which allow to create
+ *         <li> <p>an "Attribute" class which allow to create
  *         attribute instances with instance dependent methods.</p>
  *         </li>
+ *         <li> <p>an "Attribute Class" class which contains all the
+ *         methods that do not depend on attribute instances</p>
+ *         </li>
  *     </ul>
  *     </li>
  *     <li><p>{@link myutil.intboolsolver.IBSAttribute
  *     IBSAttribute} is the interface describing the features
- *     to provide in order to instantiate the "attribute" class
+ *     to provide in order to instantiate the "Attribute" class
  *     of {@link myutil.intboolsolver.IBSolver
  *     IBSolver} (features that depend on attribute instances).
  *     <b> implementation must be provides </b>. It can be
- *     implemented using provided extensions.</p>
+ *     implemented directly or using the provided extensions.</p>
  *     </li>
  *     <li><p>{@link myutil.intboolsolver.IBSAttributeClass
  *     IBSAttributeClass} is the interface describing the features
  *     to provide in order to instantiate the "attribute class"
  *     class of {@link myutil.intboolsolver.IBSolver IBSolver}
  *     (features that do not depend on attribute instances).
- *     <b> implementation must be provides </b>. It requires to
- *     instanciate an "attribute" parameter by a class that extends
+ *     <b> implementation must be provided </b>. It requires to
+ *     instanciate an "Attribute" parameter by a class that extends
  *     {@link myutil.intboolsolver.IBSAttribute IBSAttribute},
  *     (with the same {@code Spec}, {@code Comp}, {@code SpecState},
  *     {@code CompState} and {@code State} parameters).
@@ -200,31 +208,31 @@
  * </ul>
  *
  * <hr>
- * <span style="font-size: 120%"> Extension Abstract Attribute </span>
+ * <span style="font-size: 120%"> Extension Standard Attributes </span>
  *  <p> This extension provides a skeleton for a typical
  *  implementation with (boolean) state leaves. It provides a guided
  *  way to implement some methods of
  *  {@link myutil.intboolsolver.IBSAttribute IBSAttribute} and
  *  {@link myutil.intboolsolver.IBSAttributeClass
  *  IBSAttributeClass}</p>
- *  <p> Following the proposed method some partial implementation is
- *  provided. It is sometime provided as code in comments that must
- *  be copied in final instanciation (when genericity disappear).</p>
- *  <p> This extention refines the two abstract class for
+ *  <p> Following the proposed approach, some partial implementation
+ *  is provided. It is sometime provided as code in comments that must
+ *  be copied in final instantiation (when genericity disappear).</p>
+ *  <p> This extension refines the two abstract class for
  *  attributes</p>
  *  <p> Note: the two following classes should be abstract
  *  (future work) making the remaining work to do more clear</p>
  * <ul>
- *     <li><p>{@link myutil.intboolsolver.IBSAbsAttribute
- *     IBSAbsAttribute} implements
+ *     <li><p>{@link myutil.intboolsolver.IBSStdAttribute
+ *     IBSStdAttribute} implements
  *     {@link myutil.intboolsolver.IBSAttribute IBSAttribute}.
  *     To instantiate the solver using this approach, <b>a fully
  *     implemented extension of this class must be provided</b>.
  *     Comments in the file say what remains to implement
  *     (in the futur, abstraction, for automatic checking...).
  *     </li>
- *     <li><p>{@link myutil.intboolsolver.IBSAbsAttributeClass
- *     IBSAbsAttributeClass} implements
+ *     <li><p>{@link myutil.intboolsolver.IBSStdAttributeClass
+ *     IBSStdAttributeClass} implements
  *     {@link myutil.intboolsolver.IBSAttributeClass
  *     IBSAttributeClass}.
  *     To instantiate the solver using this approach, <b>a fully
@@ -236,11 +244,11 @@
  *
  * <p><b>Instantiation summary:</b></p>
  * <p> similar to <a href="#instanciation_sumary"> the previously
- * described process</a>, replacing IBSAttribute by IBSAbsAttribute
- * and IBSAttributeClass by  IBSAbsAttributeClass.</p>
+ * described process</a>, replacing IBSAttribute by IBSStdAttribute
+ * and IBSAttributeClass by  IBSStdAttributeClass.</p>
  *
- * @version 0.0 27/02/2023
+ * @version 0.1 07/03/2023
  *
- * @author Sophie Coudert
+ * @author Sophie Coudert  (rewrite from Alessandro TEMPIA CALVINO)
  */
  package myutil.intboolsolver;
\ No newline at end of file