diff --git a/src/org/gcube/dataanalysis/ecoengine/interfaces/ComputationalAgent.java b/src/org/gcube/dataanalysis/ecoengine/interfaces/ComputationalAgent.java
new file mode 100644
index 0000000..c12de75
--- /dev/null
+++ b/src/org/gcube/dataanalysis/ecoengine/interfaces/ComputationalAgent.java
@@ -0,0 +1,21 @@
+package org.gcube.dataanalysis.ecoengine.interfaces;
+
+import java.util.HashMap;
+
+import org.gcube.dataanalysis.ecoengine.configuration.WEIGHT;
+import org.gcube.dataanalysis.ecoengine.utils.VarCouple;
+
+public interface ComputationalAgent {
+	
+	//set the input parameters for this generator
+	public HashMap<String, VarCouple> getInputParameters();	
+	
+	public String getResourceLoad();
+	
+	public String getResources();
+	
+	public float getStatus();
+	
+	//gets the weight of the generator: according to this the generator will be placed in the execution order
+	public WEIGHT getWeight();
+}
diff --git a/src/org/gcube/dataanalysis/ecoengine/interfaces/Generator.java b/src/org/gcube/dataanalysis/ecoengine/interfaces/Generator.java
index 44596b8..a4b51e7 100644
--- a/src/org/gcube/dataanalysis/ecoengine/interfaces/Generator.java
+++ b/src/org/gcube/dataanalysis/ecoengine/interfaces/Generator.java
@@ -1,24 +1,16 @@
 package org.gcube.dataanalysis.ecoengine.interfaces;
 
-import java.util.HashMap;
-
 import org.gcube.dataanalysis.ecoengine.configuration.ALG_PROPS;
 import org.gcube.dataanalysis.ecoengine.configuration.AlgorithmConfiguration;
 import org.gcube.dataanalysis.ecoengine.configuration.WEIGHT;
-import org.gcube.dataanalysis.ecoengine.utils.VarCouple;
 
-public interface Generator {
+public interface Generator extends ComputationalAgent{
 
 	public ALG_PROPS[] getSupportedAlgorithms();
 	
-	//set the input parameters for this generator
-	public HashMap<String, VarCouple> getInputParameters();
-	
 	//gets the weight of the generator: according to this the generator will be placed in the execution order
 	public WEIGHT getWeight();
 	
-	public float getStatus();
-	
 	public void init();
 	
 	public void setConfiguration(AlgorithmConfiguration config);
@@ -27,10 +19,6 @@ public interface Generator {
 	
 	public void stopProcess();
 	
-	public String getResourceLoad();
-	
-	public String getResources();
-	
 	public String getLoad();
 	
 	public void generate() throws Exception;
diff --git a/src/org/gcube/dataanalysis/ecoengine/interfaces/Modeler.java b/src/org/gcube/dataanalysis/ecoengine/interfaces/Modeler.java
index 804ddf0..075261b 100644
--- a/src/org/gcube/dataanalysis/ecoengine/interfaces/Modeler.java
+++ b/src/org/gcube/dataanalysis/ecoengine/interfaces/Modeler.java
@@ -1,20 +1,13 @@
 package org.gcube.dataanalysis.ecoengine.interfaces;
 
-import java.util.HashMap;
-
 import org.gcube.dataanalysis.ecoengine.configuration.ALG_PROPS;
 import org.gcube.dataanalysis.ecoengine.configuration.AlgorithmConfiguration;
 import org.gcube.dataanalysis.ecoengine.configuration.WEIGHT;
-import org.gcube.dataanalysis.ecoengine.utils.VarCouple;
 
-public interface Modeler {
+public interface Modeler extends ComputationalAgent{
 
-	
 	public ALG_PROPS[] getSupportedModels();
 	
-	//set the input parameters for this generator
-	public HashMap<String, VarCouple> getInputParameters();
-	
 	//gets the weight of the generator: according to this the generator will be placed in the execution order
 	public WEIGHT getWeight();
 	
@@ -24,12 +17,6 @@ public interface Modeler {
 	
 	public void model(AlgorithmConfiguration Input);
 	
-	public String getResourceLoad();
-	
-	public String getResources();
-	
-	public float getStatus();
-	
 	public void stop();
 	
 	//gets the class name of the model