diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SparkBulkTagJob.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SparkBulkTagJob.java
index 755afd2ed..13540cefa 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SparkBulkTagJob.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SparkBulkTagJob.java
@@ -1,12 +1,14 @@
 package eu.dnetlib.dhp;
 
 import java.io.File;
-import java.util.Arrays;
-import java.util.List;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.gson.Gson;
 import eu.dnetlib.dhp.application.ArgumentApplicationParser;
+import eu.dnetlib.dhp.community.CommunityConfiguration;
+import eu.dnetlib.dhp.community.ProtoMap;
+import eu.dnetlib.dhp.community.QueryInformationSystem;
+import eu.dnetlib.dhp.community.ResultTagger;
 import eu.dnetlib.dhp.schema.oaf.*;
 import org.apache.commons.io.IOUtils;
 import org.apache.hadoop.io.Text;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Community.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Community.java
similarity index 97%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Community.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Community.java
index eebeb05b3..47e4b7a12 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Community.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Community.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.gson.Gson;
 import org.apache.commons.logging.Log;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfiguration.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfiguration.java
similarity index 98%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfiguration.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfiguration.java
index 6bf5a1a80..aa1a9bb8c 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfiguration.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfiguration.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
@@ -8,7 +8,6 @@ import com.google.gson.GsonBuilder;
 
 import eu.dnetlib.dhp.selectioncriteria.InterfaceAdapter;
 import eu.dnetlib.dhp.selectioncriteria.Selection;
-import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
@@ -18,7 +17,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
-import java.util.stream.Stream;
 
 /**
  * Created by miriam on 02/08/2018.
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfigurationFactory.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfigurationFactory.java
similarity index 99%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfigurationFactory.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfigurationFactory.java
index 98a2437fb..772aea51d 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/CommunityConfigurationFactory.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/CommunityConfigurationFactory.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraint.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraint.java
similarity index 97%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraint.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraint.java
index 6df127046..271493ca8 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraint.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraint.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 
 
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraints.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraints.java
similarity index 98%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraints.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraints.java
index 27572d8ae..a33f993f0 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Constraints.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Constraints.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 
 import com.google.gson.Gson;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Datasource.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Datasource.java
similarity index 97%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Datasource.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Datasource.java
index a4a254f33..c0047a07e 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Datasource.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Datasource.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 
 import com.google.gson.Gson;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Pair.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Pair.java
similarity index 94%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Pair.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Pair.java
index 4a1fece43..1cff8bfef 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/Pair.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/Pair.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.gson.Gson;
 
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ProtoMap.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ProtoMap.java
similarity index 79%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ProtoMap.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ProtoMap.java
index 01f4b8a37..6bbe50c86 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ProtoMap.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ProtoMap.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import java.util.HashMap;
 
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/QueryInformationSystem.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/QueryInformationSystem.java
similarity index 98%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/QueryInformationSystem.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/QueryInformationSystem.java
index 1794e4928..00edf7fdc 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/QueryInformationSystem.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/QueryInformationSystem.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.common.base.Joiner;
 import eu.dnetlib.dhp.utils.ISLookupClientFactory;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ResultTagger.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ResultTagger.java
similarity index 98%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ResultTagger.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ResultTagger.java
index c6c30c9d7..b9962050c 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ResultTagger.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ResultTagger.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 import com.google.gson.Gson;
 import com.jayway.jsonpath.DocumentContext;
 import com.jayway.jsonpath.JsonPath;
@@ -9,7 +9,7 @@ import java.util.*;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import static eu.dnetlib.dhp.TagginConstants.*;
+import static eu.dnetlib.dhp.community.TagginConstants.*;
 
 
 /**
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SelectionConstraints.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/SelectionConstraints.java
similarity index 97%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SelectionConstraints.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/SelectionConstraints.java
index 2890986d3..2c09ecaf1 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/SelectionConstraints.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/SelectionConstraints.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/TagginConstants.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/TagginConstants.java
similarity index 96%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/TagginConstants.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/TagginConstants.java
index b089d9fd5..494d955c8 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/TagginConstants.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/TagginConstants.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 
 public class TagginConstants {
diff --git a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ZenodoCommunity.java b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ZenodoCommunity.java
similarity index 96%
rename from dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ZenodoCommunity.java
rename to dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ZenodoCommunity.java
index af39d18e3..d785a3d94 100644
--- a/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/ZenodoCommunity.java
+++ b/dhp-workflows/dhp-bulktag/src/main/java/eu/dnetlib/dhp/community/ZenodoCommunity.java
@@ -1,4 +1,4 @@
-package eu.dnetlib.dhp;
+package eu.dnetlib.dhp.community;
 
 import com.google.gson.Gson;
 import org.dom4j.Node;