diff --git a/src/main/java/org/gcube/common/software/analyser/ConfigAnalyser.java b/src/main/java/org/gcube/common/software/analyser/Analyser.java
similarity index 71%
rename from src/main/java/org/gcube/common/software/analyser/ConfigAnalyser.java
rename to src/main/java/org/gcube/common/software/analyser/Analyser.java
index 849ecb4..fb6ad9f 100644
--- a/src/main/java/org/gcube/common/software/analyser/ConfigAnalyser.java
+++ b/src/main/java/org/gcube/common/software/analyser/Analyser.java
@@ -1,6 +1,5 @@
 package org.gcube.common.software.analyser;
 
-import java.io.File;
 import java.net.URL;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
@@ -20,26 +19,40 @@ import org.slf4j.LoggerFactory;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public class ConfigAnalyser {
+public class Analyser {
 	
-	private static final Logger logger = LoggerFactory.getLogger(ConfigAnalyser.class);
+	private static final Logger logger = LoggerFactory.getLogger(Analyser.class);
 
 	public static final String EXPORT_FILENAME_EXTENSION = ".json";
 	
-	public static final String GLOBAL_PROPERTY_NAME = "global";
-	public static final String VERSIONS_PROPERTY_NAME = "versions";
-	
 	protected ObjectMapper objectMapper;
-	protected JsonNode jsonNode;
 	
-	public ConfigAnalyser(File jsonFile) throws Exception {
+	protected ObjectNode originalGlobal;
+	protected ArrayNode originalVersions;
+	protected ArrayNode exportingVersions;
+	
+	public Analyser() throws Exception {
 		this.objectMapper = Utils.getObjectMapper();
-		this.jsonNode = objectMapper.readTree(jsonFile);
 	}
 	
-	public ConfigAnalyser(String json) throws Exception {
-		this.objectMapper = Utils.getObjectMapper();
-		this.jsonNode = objectMapper.readTree(json);
+	public ObjectNode getOriginalGlobal() {
+		return originalGlobal;
+	}
+
+	public void setOriginalGlobal(ObjectNode originalGlobal) {
+		this.originalGlobal = originalGlobal.deepCopy();
+	}
+	
+	public ArrayNode getOriginalVersions() {
+		return originalVersions;
+	}
+
+	public void setOriginalVersions(ArrayNode originalVersions) {
+		this.originalVersions = originalVersions.deepCopy();
+	}
+
+	public ArrayNode getExportingVersions() {
+		return exportingVersions;
 	}
 	
 	protected SoftwareVersionConfig actualizeSoftwareVersionConfig(JsonNode version) throws Exception {
@@ -59,32 +72,24 @@ public class ConfigAnalyser {
 		Variables variables = objectMapper.treeToValue(node, Variables.class);
 		variables.parse();
 		JsonNode sc = objectMapper.convertValue(variables.getProperties(), JsonNode.class);
-		GlobalConfig softwareConfig = objectMapper.treeToValue(sc, GlobalConfig.class);
-		return softwareConfig;
+		return objectMapper.treeToValue(sc, GlobalConfig.class);
 	}
 	
 	public void analyse() throws Exception {
-		ObjectNode originalGlobal = (ObjectNode) jsonNode.get(GLOBAL_PROPERTY_NAME).deepCopy();
 		GlobalConfig globalConfig = actualizeGlobalConfig(originalGlobal);
 		globalConfig.setOriginalJson(originalGlobal);
 		
-		ObjectNode global = originalGlobal.deepCopy();
-		global.remove(GlobalConfig.EXPORT_FILENAME_PROPERTY_NAME);
-		
-		ArrayNode versions = (ArrayNode) jsonNode.get(VERSIONS_PROPERTY_NAME);
-		
 		SoftwareVersionConfig previous = null;
 		
 		int i = 0; 
 				
-		ArrayNode exportingVersions = objectMapper.createArrayNode();  
+		exportingVersions = objectMapper.createArrayNode();  
 		try {
-			for(i=0; i<versions.size(); i++) {
-				ObjectNode originalVersion = (ObjectNode) versions.get(i).deepCopy();
+			for(i=0; i<originalVersions.size(); i++) {
+				ObjectNode originalVersion = (ObjectNode) originalVersions.get(i).deepCopy();
 				exportingVersions.add(originalVersion);
 				
-				
-				JsonNode version = Utils.merge(global, originalVersion);
+				JsonNode version = Utils.merge(originalGlobal, originalVersion);
 				SoftwareVersionConfig softwareVersion = actualizeSoftwareVersionConfig(version);
 				softwareVersion.setOriginalJson(originalVersion);
 					
@@ -120,21 +125,19 @@ public class ConfigAnalyser {
 					}
 					
 					if(newDOI) {
-						globalConfig.addAdditionalProperty(SoftwareVersionConfig.DOI_URL_PROPERTY_NAME, new TextNode(doiURL.toString()));
+						globalConfig.addProperty(SoftwareVersionConfig.DOI_URL_PROPERTY_NAME, new TextNode(doiURL.toString()));
 						originalGlobal.put(SoftwareVersionConfig.DOI_URL_PROPERTY_NAME, doiURL.toString());
 					}
 				}
 				Thread.sleep(TimeUnit.SECONDS.toMillis(2));
 			}
 		} catch (Exception e) {
-			for(int j=i+1; j<versions.size(); j++) {
-				ObjectNode originalVersion = (ObjectNode) versions.get(j).deepCopy();
+			for(int j=i+1; j<originalVersions.size(); j++) {
+				ObjectNode originalVersion = (ObjectNode) originalVersions.get(j).deepCopy();
 				exportingVersions.add(originalVersion);
 			}
 			throw e;
 		}finally {
-			ObjectNode toBeExported = objectMapper.createObjectNode();
-			toBeExported.replace(GLOBAL_PROPERTY_NAME, originalGlobal);
 			
 //			if(originalGlobal.has(SoftwareGlobalConfig.DOI_URL_PROPERTY_NAME) 
 //					&& originalGlobal.get(SoftwareGlobalConfig.DOI_URL_PROPERTY_NAME).getNodeType()!=JsonNodeType.NULL) {
@@ -152,13 +155,6 @@ public class ConfigAnalyser {
 //				}
 //			}
 			
-			toBeExported.replace(VERSIONS_PROPERTY_NAME, exportingVersions);
-			
-			String fileName = globalConfig.getExportFileName();
-			
-			File file = new File(fileName+EXPORT_FILENAME_EXTENSION);
-			objectMapper.writeValue(file, toBeExported);
-			
 		}
 		
 	} 
diff --git a/src/main/java/org/gcube/common/software/analyser/AnalyserFactory.java b/src/main/java/org/gcube/common/software/analyser/AnalyserFactory.java
new file mode 100644
index 0000000..0d97e1c
--- /dev/null
+++ b/src/main/java/org/gcube/common/software/analyser/AnalyserFactory.java
@@ -0,0 +1,78 @@
+package org.gcube.common.software.analyser;
+
+import java.io.File;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+
+import org.gcube.com.fasterxml.jackson.databind.JsonNode;
+import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
+import org.gcube.com.fasterxml.jackson.databind.node.ArrayNode;
+import org.gcube.com.fasterxml.jackson.databind.node.ObjectNode;
+import org.gcube.common.software.utils.Utils;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public class AnalyserFactory {
+	
+	public static final String EXPORT_FILENAME_EXTENSION = ".json";
+	
+	public static final String GLOBAL_PROPERTY_NAME = "global";
+	public static final String VERSIONS_PROPERTY_NAME = "versions";
+	
+	public static Analyser getAnalyser(File jsonFile) throws Exception {
+		ObjectMapper objectMapper = Utils.getObjectMapper();
+		JsonNode jsonNode = objectMapper.readTree(jsonFile);
+		return getAnalyser(jsonNode);
+	}
+	
+	public static Analyser getAnalyser(String json) throws Exception {
+		ObjectMapper objectMapper = Utils.getObjectMapper();
+		JsonNode jsonNode = objectMapper.readTree(json);
+		return getAnalyser(jsonNode);
+	}
+	
+	public static Analyser getAnalyser(JsonNode jsonNode) throws Exception {
+		Analyser analyser = new Analyser();
+		ObjectNode originalGlobal = (ObjectNode) jsonNode.get(GLOBAL_PROPERTY_NAME);
+		analyser.setOriginalGlobal(originalGlobal);
+		ArrayNode originalVersions = (ArrayNode) jsonNode.get(VERSIONS_PROPERTY_NAME);
+		analyser.setOriginalVersions(originalVersions);
+		return analyser;
+	}
+	
+	
+	public static ObjectNode getAnalysResultAsObjectNode(Analyser analyser) throws Exception {
+		ObjectMapper objectMapper = Utils.getObjectMapper();
+		ObjectNode toBeExported = objectMapper.createObjectNode();
+		toBeExported.replace(GLOBAL_PROPERTY_NAME, analyser.getOriginalGlobal());
+		toBeExported.replace(VERSIONS_PROPERTY_NAME, analyser.getExportingVersions());
+		return toBeExported;
+	}
+	
+	public static String getExportFileName(String fileName) {
+		if(fileName==null || fileName.length()==0) {
+			SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
+			return simpleDateFormat.format(Calendar.getInstance().getTime()) + EXPORT_FILENAME_EXTENSION;
+		}
+		return fileName;
+	}
+
+	
+	public static void writeAnalysResultToFile(Analyser analyser) throws Exception {
+		String fileName = getExportFileName(null);
+		File file = new File(fileName);
+		writeAnalysResultToFile(analyser, file);
+	}
+	
+	public static void writeAnalysResultToFile(Analyser analyser, File file) throws Exception {
+		ObjectNode toBeExported = getAnalysResultAsObjectNode(analyser);
+		writeObjectNodeToFile(toBeExported, file);
+	}
+	
+	
+	public static void writeObjectNodeToFile(ObjectNode toBeExported, File file) throws Exception {
+		ObjectMapper objectMapper = Utils.getObjectMapper();
+		objectMapper.writeValue(file, toBeExported);
+	}
+}
diff --git a/src/main/java/org/gcube/common/software/model/GlobalConfig.java b/src/main/java/org/gcube/common/software/model/GlobalConfig.java
index ec8523c..86d3e27 100644
--- a/src/main/java/org/gcube/common/software/model/GlobalConfig.java
+++ b/src/main/java/org/gcube/common/software/model/GlobalConfig.java
@@ -1,15 +1,11 @@
 package org.gcube.common.software.model;
 
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
 import org.gcube.com.fasterxml.jackson.annotation.JsonAnyGetter;
 import org.gcube.com.fasterxml.jackson.annotation.JsonAnySetter;
 import org.gcube.com.fasterxml.jackson.annotation.JsonIgnore;
-import org.gcube.com.fasterxml.jackson.annotation.JsonProperty;
-import org.gcube.com.fasterxml.jackson.annotation.JsonSetter;
 import org.gcube.com.fasterxml.jackson.databind.JsonNode;
 import org.gcube.com.fasterxml.jackson.databind.node.ObjectNode;
 
@@ -18,36 +14,13 @@ import org.gcube.com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public class GlobalConfig {
 
-	public static final String EXPORT_FILENAME_PROPERTY_NAME = "export_filename";
-	
-	@JsonProperty(EXPORT_FILENAME_PROPERTY_NAME)
-	protected String exportFileName;
-		
-	protected Map<String, JsonNode> additionalProperties;
+	protected Map<String, JsonNode> properties;
 	
 	@JsonIgnore
 	protected ObjectNode originalJson;
 	
 	public GlobalConfig() {
-		this.additionalProperties = new LinkedHashMap<>(); 
-	}
-	
-	@JsonIgnore
-	public String getExportFileName() {
-		if(exportFileName==null) {
-			if(additionalProperties.containsKey(EXPORT_FILENAME_PROPERTY_NAME)) {
-				exportFileName = additionalProperties.get(EXPORT_FILENAME_PROPERTY_NAME).asText();
-			}else {
-				SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
-				exportFileName = simpleDateFormat.format(Calendar.getInstance().getTime());
-			}
-		}
-		return exportFileName;
-	}
-
-	@JsonSetter(EXPORT_FILENAME_PROPERTY_NAME)
-	public void setExportFileName(String exportFileName) {
-		this.exportFileName = exportFileName;
+		this.properties = new LinkedHashMap<>(); 
 	}
 
 	@JsonIgnore
@@ -61,18 +34,18 @@ public class GlobalConfig {
 	}
 	
 	@JsonAnyGetter
-    public Map<String, JsonNode> getAdditionalProperties() {
-		return additionalProperties;
+    public Map<String, JsonNode> getProperties() {
+		return properties;
     }
 	
 	@JsonAnySetter
-    public void addAdditionalProperty(String key, JsonNode value) {
-		this.additionalProperties.put(key, value);
+    public void addProperty(String key, JsonNode value) {
+		this.properties.put(key, value);
     }
 	
 	@JsonIgnore
-	public JsonNode getAdditionalProperty(String key) {
-		return this.additionalProperties.get(key);
+	public JsonNode getProperty(String key) {
+		return this.properties.get(key);
 	}
 
 }
diff --git a/src/test/java/org/gcube/common/software/analyser/SoftwareConceptAnalyserTest.java b/src/test/java/org/gcube/common/software/analyser/SoftwareConceptAnalyserTest.java
index fb99c5d..94444a8 100644
--- a/src/test/java/org/gcube/common/software/analyser/SoftwareConceptAnalyserTest.java
+++ b/src/test/java/org/gcube/common/software/analyser/SoftwareConceptAnalyserTest.java
@@ -17,8 +17,10 @@ public class SoftwareConceptAnalyserTest {
 	@Test
 	public void testUsingTestFile() throws Exception {
 		File file = FileUtils.getFileFromFilename(FILENAME);
-		ConfigAnalyser softwareConceptAnalyser = new ConfigAnalyser(file);
-		softwareConceptAnalyser.analyse();
+		Analyser analyser = AnalyserFactory.getAnalyser(file);
+		analyser.analyse();
+		File exportFile = new File("exported-"+file.getName());
+		AnalyserFactory.writeAnalysResultToFile(analyser, exportFile);
 	}
 
 }
diff --git a/src/test/resources/exported-gcat-from-scratch.json b/src/test/resources/exported-gcat-from-scratch.json
index cd35106..8aebd27 100644
--- a/src/test/resources/exported-gcat-from-scratch.json
+++ b/src/test/resources/exported-gcat-from-scratch.json
@@ -149,8 +149,7 @@
 	        "BibLaTeXSoftwareVersionExporter": {
 	        	 "elaboration": "ALL"
 	        }
-	    },
-	    "export_filename": "{{name}}"
+	    }
     },
     "versions":
     [
diff --git a/src/test/resources/gcat-from-scratch.json b/src/test/resources/gcat-from-scratch.json
index d1b7e97..6a9f816 100644
--- a/src/test/resources/gcat-from-scratch.json
+++ b/src/test/resources/gcat-from-scratch.json
@@ -139,8 +139,7 @@
 	        "BibLaTeXSoftwareVersionExporter": {
 	        	 "elaboration": "ALL"
 	        }
-	    },
-	    "export_filename": "{{name}}"
+	    }
     },
     "versions": [
         {
diff --git a/src/test/resources/gcat-test-sandbox.json b/src/test/resources/gcat-test-sandbox.json
index 3d5cfa8..2cc8675 100644
--- a/src/test/resources/gcat-test-sandbox.json
+++ b/src/test/resources/gcat-test-sandbox.json
@@ -139,8 +139,7 @@
 	        "BibLaTeXSoftwareVersionExporter": {
 	        	 "elaboration": "ALL"
 	        }
-	    },
-	    "export_filename": "{{name}}"
+	    }
     },
     "versions": [
         {