diff --git a/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalExternalAlgorithm.java b/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalExternalAlgorithm.java
index a0ea812..1ca6849 100644
--- a/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalExternalAlgorithm.java
+++ b/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalExternalAlgorithm.java
@@ -45,6 +45,14 @@ public abstract class StandardLocalExternalAlgorithm implements Transducerer {
 		inputs.add(new PrimitiveType(Integer.class.getName(), null, PrimitiveTypes.NUMBER, name, description, defaultvalue));
 	}
 
+	protected void addBooleanInput(String name, String description, String defaultvalue) {
+		inputs.add(new PrimitiveType(Boolean.class.getName(), null, PrimitiveTypes.BOOLEAN, name, description, defaultvalue));
+	}
+	
+	protected void addFileInput(String name, String description, String defaultvalue) {
+		inputs.add(new PrimitiveType(File.class.getName(), null, PrimitiveTypes.FILE, name, description, defaultvalue));
+	}
+	
 	protected void addDoubleInput(String name, String description, String defaultvalue) {
 		inputs.add(new PrimitiveType(Double.class.getName(), null, PrimitiveTypes.NUMBER, name, description, defaultvalue));
 	}