diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/application/AbstractScalaApplication.scala b/dhp-common/src/main/java/eu/dnetlib/dhp/application/AbstractScalaApplication.scala
new file mode 100644
index 000000000..44dad93eb
--- /dev/null
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/application/AbstractScalaApplication.scala
@@ -0,0 +1,37 @@
+package eu.dnetlib.dhp.application
+
+import org.apache.spark.SparkConf
+import org.apache.spark.sql.SparkSession
+import org.slf4j.Logger
+
+abstract class AbstractScalaApplication (val propertyPath:String, val args:Array[String], log:Logger) extends  SparkScalaApplication {
+
+  var parser: ArgumentApplicationParser = null
+
+  var spark:SparkSession = null
+
+
+  def initialize():SparkScalaApplication = {
+    parser = parseArguments(args)
+    spark = createSparkSession()
+    this
+  }
+
+  /**
+   * Utility for creating a spark session starting from parser
+   *
+   * @return a spark Session
+   */
+  private def createSparkSession():SparkSession = {
+    require(parser!= null)
+
+    val conf:SparkConf = new SparkConf()
+    val master = parser.get("master")
+    log.info(s"Creating Spark session: Master: $master")
+    SparkSession.builder().config(conf)
+      .appName(getClass.getSimpleName)
+      .master(master)
+      .getOrCreate()
+  }
+
+}
\ No newline at end of file
diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/application/SparkScalaApplication.scala b/dhp-common/src/main/java/eu/dnetlib/dhp/application/SparkScalaApplication.scala
new file mode 100644
index 000000000..247bacac0
--- /dev/null
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/application/SparkScalaApplication.scala
@@ -0,0 +1,35 @@
+package eu.dnetlib.dhp.application
+
+import scala.io.Source
+
+/**
+ * This is the main Interface SparkApplication
+ * where all the Spark Scala class should inherit
+ *
+ */
+trait SparkScalaApplication {
+  /**
+   * This is the path in the classpath of the json
+   * describes all the argument needed to run
+   */
+  val propertyPath: String
+
+  /**
+   * Utility to parse the arguments using the
+   * property json in the classpath identified from
+   * the variable propertyPath
+   *
+   * @param args the list of arguments
+   */
+  def parseArguments(args: Array[String]): ArgumentApplicationParser = {
+    val parser = new ArgumentApplicationParser(Source.fromInputStream(getClass.getResourceAsStream(propertyPath)).mkString)
+    parser.parseArgument(args)
+    parser
+  }
+
+  /**
+   * Here all the spark applications runs this method
+   * where the whole logic of the spark node is defined
+   */
+  def run(): Unit
+}
diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteModelConstants.scala b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteModelConstants.scala
new file mode 100644
index 000000000..0685a04a3
--- /dev/null
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteModelConstants.scala
@@ -0,0 +1,134 @@
+package eu.dnetlib.dhp.datacite
+
+import eu.dnetlib.dhp.schema.common.ModelConstants
+import eu.dnetlib.dhp.schema.oaf.{DataInfo, KeyValue}
+import eu.dnetlib.dhp.schema.oaf.utils.OafMapperUtils
+
+import java.io.InputStream
+import java.time.format.DateTimeFormatter
+import java.util.Locale
+import java.util.regex.Pattern
+import scala.io.Source
+
+/**
+ * This class represent the dataModel of the input Dataset of Datacite
+ * @param doi THE DOI
+ * @param timestamp timestamp of last update date
+ * @param isActive the record is active or deleted
+ * @param json the json native records
+ */
+case class DataciteType(doi: String, timestamp: Long, isActive: Boolean, json: String) {}
+
+/*
+  The following class are utility class used for the mapping from
+  json datacite to OAF Shema
+ */
+case class RelatedIdentifierType(relationType: String, relatedIdentifier: String, relatedIdentifierType: String) {}
+
+case class NameIdentifiersType(nameIdentifierScheme: Option[String], schemeUri: Option[String], nameIdentifier: Option[String]) {}
+
+case class CreatorType(nameType: Option[String], nameIdentifiers: Option[List[NameIdentifiersType]], name: Option[String], familyName: Option[String], givenName: Option[String], affiliation: Option[List[String]]) {}
+
+case class TitleType(title: Option[String], titleType: Option[String], lang: Option[String]) {}
+
+case class SubjectType(subject: Option[String], subjectScheme: Option[String]) {}
+
+case class DescriptionType(descriptionType: Option[String], description: Option[String]) {}
+
+case class FundingReferenceType(funderIdentifierType: Option[String], awardTitle: Option[String], awardUri: Option[String], funderName: Option[String], funderIdentifier: Option[String], awardNumber: Option[String]) {}
+
+case class DateType(date: Option[String], dateType: Option[String]) {}
+
+case class OAFRelations(relation:String, inverse:String, relType:String)
+
+
+class DataciteModelConstants extends Serializable {
+
+}
+
+object DataciteModelConstants {
+
+  val REL_TYPE_VALUE:String = "resultResult"
+  val DATE_RELATION_KEY = "RelationDate"
+  val DATACITE_FILTER_PATH = "/eu/dnetlib/dhp/datacite/datacite_filter"
+  val DOI_CLASS = "doi"
+  val SUBJ_CLASS = "keywords"
+  val DATACITE_NAME = "Datacite"
+  val dataInfo: DataInfo = dataciteDataInfo("0.9")
+  val DATACITE_COLLECTED_FROM: KeyValue = OafMapperUtils.keyValue(ModelConstants.DATACITE_ID, DATACITE_NAME)
+
+  val subRelTypeMapping: Map[String,OAFRelations] = Map(
+    ModelConstants.REFERENCES ->            OAFRelations(ModelConstants.REFERENCES, ModelConstants.IS_REFERENCED_BY, ModelConstants.RELATIONSHIP),
+    ModelConstants.IS_REFERENCED_BY ->      OAFRelations(ModelConstants.IS_REFERENCED_BY,ModelConstants.REFERENCES, ModelConstants.RELATIONSHIP),
+
+    ModelConstants.IS_SUPPLEMENTED_BY ->    OAFRelations(ModelConstants.IS_SUPPLEMENTED_BY,ModelConstants.IS_SUPPLEMENT_TO,ModelConstants.SUPPLEMENT),
+    ModelConstants.IS_SUPPLEMENT_TO ->      OAFRelations(ModelConstants.IS_SUPPLEMENT_TO,ModelConstants.IS_SUPPLEMENTED_BY,ModelConstants.SUPPLEMENT),
+
+    ModelConstants.HAS_PART ->              OAFRelations(ModelConstants.HAS_PART,ModelConstants.IS_PART_OF, ModelConstants.PART),
+    ModelConstants.IS_PART_OF ->            OAFRelations(ModelConstants.IS_PART_OF,ModelConstants.HAS_PART, ModelConstants.PART),
+
+    ModelConstants.IS_VERSION_OF->          OAFRelations(ModelConstants.IS_VERSION_OF,ModelConstants.HAS_VERSION,ModelConstants.VERSION),
+    ModelConstants.HAS_VERSION->            OAFRelations(ModelConstants.HAS_VERSION,ModelConstants.IS_VERSION_OF,ModelConstants.VERSION),
+
+    ModelConstants.IS_IDENTICAL_TO ->       OAFRelations(ModelConstants.IS_IDENTICAL_TO,ModelConstants.IS_IDENTICAL_TO, ModelConstants.RELATIONSHIP),
+
+    ModelConstants.IS_CONTINUED_BY ->       OAFRelations(ModelConstants.IS_CONTINUED_BY,ModelConstants.CONTINUES, ModelConstants.RELATIONSHIP),
+    ModelConstants.CONTINUES ->             OAFRelations(ModelConstants.CONTINUES,ModelConstants.IS_CONTINUED_BY, ModelConstants.RELATIONSHIP),
+
+    ModelConstants.IS_NEW_VERSION_OF->      OAFRelations(ModelConstants.IS_NEW_VERSION_OF,ModelConstants.IS_PREVIOUS_VERSION_OF, ModelConstants.VERSION),
+    ModelConstants.IS_PREVIOUS_VERSION_OF ->OAFRelations(ModelConstants.IS_PREVIOUS_VERSION_OF,ModelConstants.IS_NEW_VERSION_OF, ModelConstants.VERSION),
+
+    ModelConstants.IS_DOCUMENTED_BY ->      OAFRelations(ModelConstants.IS_DOCUMENTED_BY,ModelConstants.DOCUMENTS, ModelConstants.RELATIONSHIP),
+    ModelConstants.DOCUMENTS ->             OAFRelations(ModelConstants.DOCUMENTS,ModelConstants.IS_DOCUMENTED_BY, ModelConstants.RELATIONSHIP),
+
+    ModelConstants.IS_SOURCE_OF ->          OAFRelations(ModelConstants.IS_SOURCE_OF,ModelConstants.IS_DERIVED_FROM, ModelConstants.VERSION),
+    ModelConstants.IS_DERIVED_FROM ->       OAFRelations(ModelConstants.IS_DERIVED_FROM,ModelConstants.IS_SOURCE_OF, ModelConstants.VERSION),
+
+    ModelConstants.CITES ->                 OAFRelations(ModelConstants.CITES,ModelConstants.IS_CITED_BY, ModelConstants.CITATION),
+    ModelConstants.IS_CITED_BY ->           OAFRelations(ModelConstants.IS_CITED_BY,ModelConstants.CITES, ModelConstants.CITATION),
+
+    ModelConstants.IS_VARIANT_FORM_OF ->    OAFRelations(ModelConstants.IS_VARIANT_FORM_OF,ModelConstants.IS_DERIVED_FROM, ModelConstants.VERSION),
+    ModelConstants.IS_OBSOLETED_BY ->       OAFRelations(ModelConstants.IS_OBSOLETED_BY,ModelConstants.IS_NEW_VERSION_OF, ModelConstants.VERSION),
+
+    ModelConstants.REVIEWS ->               OAFRelations(ModelConstants.REVIEWS,ModelConstants.IS_REVIEWED_BY, ModelConstants.REVIEW),
+    ModelConstants.IS_REVIEWED_BY ->        OAFRelations(ModelConstants.IS_REVIEWED_BY,ModelConstants.REVIEWS, ModelConstants.REVIEW),
+
+    ModelConstants.DOCUMENTS ->             OAFRelations(ModelConstants.DOCUMENTS,ModelConstants.IS_DOCUMENTED_BY, ModelConstants.RELATIONSHIP),
+    ModelConstants.IS_DOCUMENTED_BY ->      OAFRelations(ModelConstants.IS_DOCUMENTED_BY,ModelConstants.DOCUMENTS, ModelConstants.RELATIONSHIP),
+
+    ModelConstants.COMPILES ->              OAFRelations(ModelConstants.COMPILES,ModelConstants.IS_COMPILED_BY, ModelConstants.RELATIONSHIP),
+    ModelConstants.IS_COMPILED_BY ->        OAFRelations(ModelConstants.IS_COMPILED_BY,ModelConstants.COMPILES, ModelConstants.RELATIONSHIP)
+  )
+
+
+  val datacite_filter: List[String] = {
+    val stream: InputStream = getClass.getResourceAsStream(DATACITE_FILTER_PATH)
+    require(stream!= null)
+    Source.fromInputStream(stream).getLines().toList
+  }
+
+
+  def dataciteDataInfo(trust: String): DataInfo =  OafMapperUtils.dataInfo(false,null, false, false, ModelConstants.PROVENANCE_ACTION_SET_QUALIFIER, trust)
+
+  val df_en: DateTimeFormatter = DateTimeFormatter.ofPattern("[MM-dd-yyyy][MM/dd/yyyy][dd-MM-yy][dd-MMM-yyyy][dd/MMM/yyyy][dd-MMM-yy][dd/MMM/yy][dd-MM-yy][dd/MM/yy][dd-MM-yyyy][dd/MM/yyyy][yyyy-MM-dd][yyyy/MM/dd]", Locale.ENGLISH)
+  val df_it: DateTimeFormatter = DateTimeFormatter.ofPattern("[dd-MM-yyyy][dd/MM/yyyy]", Locale.ITALIAN)
+
+  val funder_regex: List[(Pattern, String)] = List(
+    (Pattern.compile("(info:eu-repo/grantagreement/ec/h2020/)(\\d\\d\\d\\d\\d\\d)(.*)", Pattern.MULTILINE | Pattern.CASE_INSENSITIVE), "40|corda__h2020::"),
+    (Pattern.compile("(info:eu-repo/grantagreement/ec/fp7/)(\\d\\d\\d\\d\\d\\d)(.*)", Pattern.MULTILINE | Pattern.CASE_INSENSITIVE), "40|corda_______::")
+
+  )
+
+  val Date_regex: List[Pattern] = List(
+    //Y-M-D
+    Pattern.compile("(18|19|20)\\d\\d([- /.])(0[1-9]|1[012])\\2(0[1-9]|[12][0-9]|3[01])", Pattern.MULTILINE),
+    //M-D-Y
+    Pattern.compile("((0[1-9]|1[012])|([1-9]))([- /.])(0[1-9]|[12][0-9]|3[01])([- /.])(18|19|20)?\\d\\d", Pattern.MULTILINE),
+    //D-M-Y
+    Pattern.compile("(?:(?:31(/|-|\\.)(?:0?[13578]|1[02]|(?:Jan|Mar|May|Jul|Aug|Oct|Dec)))\\1|(?:(?:29|30)(/|-|\\.)(?:0?[1,3-9]|1[0-2]|(?:Jan|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec))\\2))(?:(?:1[6-9]|[2-9]\\d)?\\d{2})|(?:29(/|-|\\.)(?:0?2|(?:Feb))\\3(?:(?:(?:1[6-9]|[2-9]\\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))|(?:0?[1-9]|1\\d|2[0-8])(/|-|\\.)(?:(?:0?[1-9]|(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep))|(?:1[0-2]|(?:Oct|Nov|Dec)))\\4(?:(?:1[6-9]|[2-9]\\d)?\\d{2})", Pattern.MULTILINE),
+    //Y
+    Pattern.compile("(19|20)\\d\\d", Pattern.MULTILINE)
+  )
+
+
+}
diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
index 1af72e8d3..6b4deef0a 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
@@ -2,6 +2,7 @@ package eu.dnetlib.dhp.datacite
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import eu.dnetlib.dhp.common.vocabulary.VocabularyGroup
+import eu.dnetlib.dhp.datacite.DataciteModelConstants._
 import eu.dnetlib.dhp.schema.action.AtomicAction
 import eu.dnetlib.dhp.schema.common.ModelConstants
 import eu.dnetlib.dhp.schema.oaf.utils.{IdentifierFactory, OafMapperUtils}
@@ -12,115 +13,30 @@ import org.json4s.DefaultFormats
 import org.json4s.JsonAST.{JField, JObject, JString}
 import org.json4s.jackson.JsonMethods.parse
 
-import java.nio.charset.CodingErrorAction
 import java.text.SimpleDateFormat
 import java.time.LocalDate
 import java.time.chrono.ThaiBuddhistDate
 import java.time.format.DateTimeFormatter
-import java.util.regex.Pattern
 import java.util.{Date, Locale}
 import scala.collection.JavaConverters._
-import scala.io.{Codec, Source}
-import scala.language.postfixOps
 
-case class DataciteType(doi: String, timestamp: Long, isActive: Boolean, json: String) {}
-
-case class RelatedIdentifierType(relationType: String, relatedIdentifier: String, relatedIdentifierType: String) {}
-
-case class NameIdentifiersType(nameIdentifierScheme: Option[String], schemeUri: Option[String], nameIdentifier: Option[String]) {}
-
-case class CreatorType(nameType: Option[String], nameIdentifiers: Option[List[NameIdentifiersType]], name: Option[String], familyName: Option[String], givenName: Option[String], affiliation: Option[List[String]]) {}
-
-case class TitleType(title: Option[String], titleType: Option[String], lang: Option[String]) {}
-
-case class SubjectType(subject: Option[String], subjectScheme: Option[String]) {}
-
-case class DescriptionType(descriptionType: Option[String], description: Option[String]) {}
-
-case class FundingReferenceType(funderIdentifierType: Option[String], awardTitle: Option[String], awardUri: Option[String], funderName: Option[String], funderIdentifier: Option[String], awardNumber: Option[String]) {}
-
-case class DateType(date: Option[String], dateType: Option[String]) {}
-
-//case class HostedByMapType(openaire_id: String, datacite_name: String, official_name: String, similarity: Option[Float]) {}
 
 object DataciteToOAFTransformation {
 
-  val REL_TYPE_VALUE:String = "resultResult"
-  val DATE_RELATION_KEY = "RelationDate"
-
-  val subRelTypeMapping: Map[String,(String,String)] = Map(
-    "References" ->("IsReferencedBy","relationship"),
-    "IsSupplementTo" ->("IsSupplementedBy","supplement"),
-    "IsPartOf" ->("HasPart","part"),
-    "HasPart" ->("IsPartOf","part"),
-    "IsVersionOf" ->("HasVersion","version"),
-    "HasVersion" ->("IsVersionOf","version"),
-    "IsIdenticalTo" ->("IsIdenticalTo","relationship"),
-    "IsPreviousVersionOf" ->("IsNewVersionOf","version"),
-    "IsContinuedBy" ->("Continues","relationship"),
-    "Continues" ->("IsContinuedBy","relationship"),
-    "IsNewVersionOf" ->("IsPreviousVersionOf","version"),
-    "IsSupplementedBy" ->("IsSupplementTo","supplement"),
-    "IsDocumentedBy" ->("Documents","relationship"),
-    "IsSourceOf" ->("IsDerivedFrom","relationship"),
-    "Cites" ->("IsCitedBy","citation"),
-    "IsCitedBy" ->("Cites","citation"),
-    "IsDerivedFrom" ->("IsSourceOf","relationship"),
-    "IsVariantFormOf" ->("IsDerivedFrom","version"),
-    "IsReferencedBy" ->("References","relationship"),
-    "IsObsoletedBy" ->("IsNewVersionOf","version"),
-    "Reviews" ->("IsReviewedBy","review"),
-    "Documents" ->("IsDocumentedBy","relationship"),
-    "IsCompiledBy" ->("Compiles","relationship"),
-    "Compiles" ->("IsCompiledBy","relationship"),
-    "IsReviewedBy" ->("Reviews","review")
-  )
-
-  implicit val codec: Codec = Codec("UTF-8")
-  codec.onMalformedInput(CodingErrorAction.REPLACE)
-  codec.onUnmappableCharacter(CodingErrorAction.REPLACE)
-
-  val DOI_CLASS = "doi"
-  val SUBJ_CLASS = "keywords"
-
-
-  val j_filter: List[String] = {
-    val s = Source.fromInputStream(getClass.getResourceAsStream("datacite_filter")).mkString
-    s.lines.toList
-  }
-
   val mapper = new ObjectMapper()
 
-  val dataInfo: DataInfo = generateDataInfo("0.9")
-  val DATACITE_COLLECTED_FROM: KeyValue = OafMapperUtils.keyValue(ModelConstants.DATACITE_ID, "Datacite")
 
-
-
-  val df_en: DateTimeFormatter = DateTimeFormatter.ofPattern("[MM-dd-yyyy][MM/dd/yyyy][dd-MM-yy][dd-MMM-yyyy][dd/MMM/yyyy][dd-MMM-yy][dd/MMM/yy][dd-MM-yy][dd/MM/yy][dd-MM-yyyy][dd/MM/yyyy][yyyy-MM-dd][yyyy/MM/dd]", Locale.ENGLISH)
-  val df_it: DateTimeFormatter = DateTimeFormatter.ofPattern("[dd-MM-yyyy][dd/MM/yyyy]", Locale.ITALIAN)
-
-  val funder_regex: List[(Pattern, String)] = List(
-    (Pattern.compile("(info:eu-repo/grantagreement/ec/h2020/)(\\d\\d\\d\\d\\d\\d)(.*)", Pattern.MULTILINE | Pattern.CASE_INSENSITIVE), "40|corda__h2020::"),
-    (Pattern.compile("(info:eu-repo/grantagreement/ec/fp7/)(\\d\\d\\d\\d\\d\\d)(.*)", Pattern.MULTILINE | Pattern.CASE_INSENSITIVE), "40|corda_______::")
-
-  )
-
-  val Date_regex: List[Pattern] = List(
-    //Y-M-D
-    Pattern.compile("(18|19|20)\\d\\d([- /.])(0[1-9]|1[012])\\2(0[1-9]|[12][0-9]|3[01])", Pattern.MULTILINE),
-    //M-D-Y
-    Pattern.compile("((0[1-9]|1[012])|([1-9]))([- /.])(0[1-9]|[12][0-9]|3[01])([- /.])(18|19|20)?\\d\\d", Pattern.MULTILINE),
-    //D-M-Y
-    Pattern.compile("(?:(?:31(/|-|\\.)(?:0?[13578]|1[02]|(?:Jan|Mar|May|Jul|Aug|Oct|Dec)))\\1|(?:(?:29|30)(/|-|\\.)(?:0?[1,3-9]|1[0-2]|(?:Jan|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec))\\2))(?:(?:1[6-9]|[2-9]\\d)?\\d{2})|(?:29(/|-|\\.)(?:0?2|(?:Feb))\\3(?:(?:(?:1[6-9]|[2-9]\\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))|(?:0?[1-9]|1\\d|2[0-8])(/|-|\\.)(?:(?:0?[1-9]|(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep))|(?:1[0-2]|(?:Oct|Nov|Dec)))\\4(?:(?:1[6-9]|[2-9]\\d)?\\d{2})", Pattern.MULTILINE),
-    //Y
-    Pattern.compile("(19|20)\\d\\d", Pattern.MULTILINE)
-  )
-
-
-  def filter_json(json: String): Boolean = {
-    j_filter.exists(f => json.contains(f))
+  /**
+   * This method should skip record if json contains invalid text
+   * defined in gile datacite_filter
+   * @param json
+   * @return True if the record should be skipped
+   */
+  def skip_record(json: String): Boolean = {
+    datacite_filter.exists(f => json.contains(f))
   }
 
+  @deprecated("this method will be removed", "dhp")
   def toActionSet(item: Oaf): (String, String) = {
     val mapper = new ObjectMapper()
 
@@ -200,6 +116,8 @@ object DataciteToOAFTransformation {
       case _: Throwable => ""
     }
   }
+
+
   def getTypeQualifier(resourceType: String, resourceTypeGeneral: String, schemaOrg: String, vocabularies: VocabularyGroup): (Qualifier, Qualifier) = {
     if (resourceType != null && resourceType.nonEmpty) {
       val typeQualifier = vocabularies.getSynonymAsQualifier(ModelConstants.DNET_PUBLICATION_RESOURCE, resourceType)
@@ -318,11 +236,7 @@ object DataciteToOAFTransformation {
       val p = match_pattern.get._2
       val grantId = m.matcher(awardUri).replaceAll("$2")
       val targetId = s"$p${DHPUtils.md5(grantId)}"
-      List(
-        generateRelation(sourceId, targetId, "isProducedBy", DATACITE_COLLECTED_FROM, dataInfo)
-// REMOVED INVERSE RELATION since there is a specific method that should generate later
-//        generateRelation(targetId, sourceId, "produces", DATACITE_COLLECTED_FROM, dataInfo)
-      )
+      List( generateRelation(sourceId, targetId, "isProducedBy", DATACITE_COLLECTED_FROM, dataInfo) )
     }
     else
       List()
@@ -331,7 +245,7 @@ object DataciteToOAFTransformation {
 
 
   def generateOAF(input: String, ts: Long, dateOfCollection: Long, vocabularies: VocabularyGroup, exportLinks: Boolean): List[Oaf] = {
-    if (filter_json(input))
+    if (skip_record(input))
       return List()
 
     implicit lazy val formats: DefaultFormats.type = org.json4s.DefaultFormats
@@ -565,7 +479,7 @@ object DataciteToOAFTransformation {
         rel.setCollectedfrom(List(DATACITE_COLLECTED_FROM).asJava)
         rel.setDataInfo(dataInfo)
 
-        val subRelType = subRelTypeMapping(r.relationType)._2
+        val subRelType = subRelTypeMapping(r.relationType).relType
         rel.setRelType(REL_TYPE_VALUE)
         rel.setSubRelType(subRelType)
         rel.setRelClass(r.relationType)
@@ -579,18 +493,9 @@ object DataciteToOAFTransformation {
         rel.setCollectedfrom(List(DATACITE_COLLECTED_FROM).asJava)
         rel.getCollectedfrom.asScala.map(c => c.getValue).toList
         rel
-      }).toList
+      })
   }
 
-  def generateDataInfo(trust: String): DataInfo = {
-    val di = new DataInfo
-    di.setDeletedbyinference(false)
-    di.setInferred(false)
-    di.setInvisible(false)
-    di.setTrust(trust)
-    di.setProvenanceaction(ModelConstants.PROVENANCE_ACTION_SET_QUALIFIER)
-    di
-  }
 
   def generateDSId(input: String): String = {
     val b = StringUtils.substringBefore(input, "::")
diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/GenerateDataciteDatasetSpark.scala b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/GenerateDataciteDatasetSpark.scala
index a63627d1c..e1607ee9c 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/GenerateDataciteDatasetSpark.scala
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/datacite/GenerateDataciteDatasetSpark.scala
@@ -1,64 +1,94 @@
 package eu.dnetlib.dhp.datacite
 
 import com.fasterxml.jackson.databind.ObjectMapper
-import eu.dnetlib.dhp.application.ArgumentApplicationParser
+import eu.dnetlib.dhp.application.AbstractScalaApplication
 import eu.dnetlib.dhp.collection.CollectionUtils.fixRelations
-import eu.dnetlib.dhp.common.Constants.MDSTORE_DATA_PATH
-import eu.dnetlib.dhp.common.Constants.MDSTORE_SIZE_PATH
+import eu.dnetlib.dhp.common.Constants.{MDSTORE_DATA_PATH, MDSTORE_SIZE_PATH}
 import eu.dnetlib.dhp.common.vocabulary.VocabularyGroup
 import eu.dnetlib.dhp.schema.mdstore.{MDStoreVersion, MetadataRecord}
 import eu.dnetlib.dhp.schema.oaf.Oaf
 import eu.dnetlib.dhp.utils.DHPUtils.writeHdfsFile
 import eu.dnetlib.dhp.utils.ISLookupClientFactory
-import org.apache.spark.SparkConf
 import org.apache.spark.sql.{Encoder, Encoders, SaveMode, SparkSession}
 import org.slf4j.{Logger, LoggerFactory}
 
-import scala.io.Source
 
-object GenerateDataciteDatasetSpark {
+class GenerateDataciteDatasetSpark (propertyPath:String, args:Array[String], log:Logger) extends  AbstractScalaApplication(propertyPath, args, log:Logger) {
+  /**
+   * Here all the spark applications runs this method
+   * where the whole logic of the spark node is defined
+   */
+  override def run(): Unit = {
 
-  val log: Logger = LoggerFactory.getLogger(GenerateDataciteDatasetSpark.getClass)
-
-  def main(args: Array[String]): Unit = {
-    val conf = new SparkConf
-    val parser = new ArgumentApplicationParser(Source.fromInputStream(getClass.getResourceAsStream("/eu/dnetlib/dhp/datacite/generate_dataset_params.json")).mkString)
-    parser.parseArgument(args)
-    val master = parser.get("master")
     val sourcePath = parser.get("sourcePath")
+    log.info(s"SourcePath is '$sourcePath'")
     val exportLinks = "true".equalsIgnoreCase(parser.get("exportLinks"))
+    log.info(s"exportLinks is '$exportLinks'")
     val isLookupUrl: String = parser.get("isLookupUrl")
     log.info("isLookupUrl: {}", isLookupUrl)
 
     val isLookupService = ISLookupClientFactory.getLookUpService(isLookupUrl)
     val vocabularies = VocabularyGroup.loadVocsFromIS(isLookupService)
-    val spark: SparkSession = SparkSession.builder().config(conf)
-      .appName(GenerateDataciteDatasetSpark.getClass.getSimpleName)
-      .master(master)
-      .getOrCreate()
+    require(vocabularies != null)
 
+    val mdstoreOutputVersion = parser.get("mdstoreOutputVersion")
+    log.info(s"mdstoreOutputVersion is '$mdstoreOutputVersion'")
+
+    val mapper = new ObjectMapper()
+    val cleanedMdStoreVersion = mapper.readValue(mdstoreOutputVersion, classOf[MDStoreVersion])
+    val outputBasePath = cleanedMdStoreVersion.getHdfsPath
+    log.info(s"outputBasePath is '$outputBasePath'")
+    val targetPath = s"$outputBasePath/$MDSTORE_DATA_PATH"
+    log.info(s"targetPath is '$targetPath'")
+
+    generateDataciteDataset(sourcePath, exportLinks, vocabularies, targetPath, spark)
+
+    reportTotalSize(targetPath, outputBasePath)
+  }
+
+
+  /**
+   * For working with MDStore we need to store in a file on hdfs the size of
+   * the current dataset
+   * @param targetPath
+   * @param outputBasePath
+   */
+  def reportTotalSize( targetPath: String, outputBasePath: String ):Unit = {
+    val total_items = spark.read.load(targetPath).count()
+    writeHdfsFile(spark.sparkContext.hadoopConfiguration, s"$total_items", outputBasePath + MDSTORE_SIZE_PATH)
+  }
+
+  /**
+   * Generate the transformed and cleaned OAF Dataset from the native one
+
+   * @param sourcePath  sourcePath of the native Dataset in format JSON/Datacite
+   * @param exportLinks If true it generates unresolved links
+   * @param vocabularies vocabularies for cleaning
+   * @param targetPath the targetPath of the result Dataset
+   */
+  def generateDataciteDataset(sourcePath: String, exportLinks: Boolean, vocabularies: VocabularyGroup, targetPath: String, spark:SparkSession):Unit = {
+    require(spark!= null)
     import spark.implicits._
 
     implicit val mrEncoder: Encoder[MetadataRecord] = Encoders.kryo[MetadataRecord]
 
     implicit val resEncoder: Encoder[Oaf] = Encoders.kryo[Oaf]
-
-    val mdstoreOutputVersion = parser.get("mdstoreOutputVersion")
-    val mapper = new ObjectMapper()
-    val cleanedMdStoreVersion = mapper.readValue(mdstoreOutputVersion, classOf[MDStoreVersion])
-    val outputBasePath = cleanedMdStoreVersion.getHdfsPath
-
-    log.info("outputBasePath: {}", outputBasePath)
-    val targetPath = s"$outputBasePath/$MDSTORE_DATA_PATH"
-
     spark.read.load(sourcePath).as[DataciteType]
       .filter(d => d.isActive)
       .flatMap(d => DataciteToOAFTransformation.generateOAF(d.json, d.timestamp, d.timestamp, vocabularies, exportLinks))
       .filter(d => d != null)
       .flatMap(i => fixRelations(i)).filter(i => i != null)
       .write.mode(SaveMode.Overwrite).save(targetPath)
+  }
 
-    val total_items = spark.read.load(targetPath).as[Oaf].count()
-    writeHdfsFile(spark.sparkContext.hadoopConfiguration, s"$total_items", outputBasePath + MDSTORE_SIZE_PATH)
+}
+
+
+object GenerateDataciteDatasetSpark {
+
+  val log: Logger = LoggerFactory.getLogger(GenerateDataciteDatasetSpark.getClass)
+
+  def main(args: Array[String]): Unit = {
+    new GenerateDataciteDatasetSpark("/eu/dnetlib/dhp/datacite/generate_dataset_params.json", args, log).initialize().run()
   }
 }
diff --git a/dhp-workflows/dhp-aggregation/src/main/resources/log4j.properties b/dhp-workflows/dhp-aggregation/src/main/resources/log4j.properties
index 63cba917e..81458d1f7 100644
--- a/dhp-workflows/dhp-aggregation/src/main/resources/log4j.properties
+++ b/dhp-workflows/dhp-aggregation/src/main/resources/log4j.properties
@@ -7,3 +7,6 @@ log4j.appender.A1=org.apache.log4j.ConsoleAppender
 # A1 uses PatternLayout.
 log4j.appender.A1.layout=org.apache.log4j.PatternLayout
 log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
+
+log4j.logger.org.apache.spark=FATAL
+log4j.logger.org.spark_project=FATAL
diff --git a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/datacite/DataciteToOAFTest.scala b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/datacite/DataciteToOAFTest.scala
index c7c6c6a92..477a4326a 100644
--- a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/datacite/DataciteToOAFTest.scala
+++ b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/datacite/DataciteToOAFTest.scala
@@ -4,24 +4,38 @@ package eu.dnetlib.dhp.datacite
 import com.fasterxml.jackson.databind.{ObjectMapper, SerializationFeature}
 import eu.dnetlib.dhp.aggregation.AbstractVocabularyTest
 import eu.dnetlib.dhp.schema.oaf.Oaf
+import org.apache.commons.io.FileUtils
+import org.apache.spark.SparkConf
+import org.apache.spark.sql.functions.{col, count}
+import org.apache.spark.sql.{Dataset, Encoder, Encoders, SparkSession}
 import org.junit.jupiter.api.extension.ExtendWith
-import org.junit.jupiter.api.{BeforeEach, Test}
+import org.junit.jupiter.api.{AfterEach, BeforeEach, Test}
 import org.mockito.junit.jupiter.MockitoExtension
+import org.slf4j.{Logger, LoggerFactory}
 
+import java.nio.file.{Files, Path}
 import java.text.SimpleDateFormat
 import java.util.Locale
 import scala.io.Source
-
+import org.junit.jupiter.api.Assertions._
 @ExtendWith(Array(classOf[MockitoExtension]))
 class DataciteToOAFTest extends  AbstractVocabularyTest{
 
+  private var workingDir:Path = null
+  val log: Logger = LoggerFactory.getLogger(getClass)
 
   @BeforeEach
   def setUp() :Unit = {
 
+    workingDir= Files.createTempDirectory(getClass.getSimpleName)
     super.setUpVocabulary()
   }
 
+  @AfterEach
+  def tearDown() :Unit = {
+    FileUtils.deleteDirectory(workingDir.toFile)
+  }
+
 
   @Test
   def testDateMapping:Unit = {
@@ -31,6 +45,51 @@ class DataciteToOAFTest extends  AbstractVocabularyTest{
     println(dt.getTime)
 
 
+  }
+
+
+  @Test
+  def testConvert(): Unit = {
+
+
+    val path = getClass.getResource("/eu/dnetlib/dhp/actionmanager/datacite/dataset").getPath
+
+    val conf = new SparkConf()
+    val spark:SparkSession =  SparkSession.builder().config(conf)
+      .appName(getClass.getSimpleName)
+      .master("local[*]")
+      .getOrCreate()
+
+
+
+    implicit val oafEncoder:Encoder[Oaf] = Encoders.kryo[Oaf]
+    val instance = new GenerateDataciteDatasetSpark(null, null, log)
+    val targetPath = s"$workingDir/result"
+
+    instance.generateDataciteDataset(path, exportLinks = true, vocabularies,targetPath, spark)
+
+    import spark.implicits._
+
+    val nativeSize =spark.read.load(path).count()
+
+
+    assertEquals(100, nativeSize)
+
+    val result:Dataset[Oaf] = spark.read.load(targetPath).as[Oaf]
+
+
+    result.map(s => s.getClass.getSimpleName).groupBy(col("value").alias("class")).agg(count("value").alias("Total")).show(false)
+
+    val t = spark.read.load(targetPath).count()
+
+    assertTrue(t >0)
+
+
+    spark.stop()
+
+
+
+
   }
 
 
@@ -38,8 +97,6 @@ class DataciteToOAFTest extends  AbstractVocabularyTest{
   def testMapping() :Unit = {
     val record =Source.fromInputStream(getClass.getResourceAsStream("/eu/dnetlib/dhp/actionmanager/datacite/record.json")).mkString
 
-
-
     val mapper = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT)
     val res:List[Oaf] =DataciteToOAFTransformation.generateOAF(record, 0L,0L, vocabularies, true )
 
diff --git a/dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/datacite/dataset/part-00000.parquet b/dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/datacite/dataset/part-00000.parquet
new file mode 100644
index 000000000..ee59c325e
Binary files /dev/null and b/dhp-workflows/dhp-aggregation/src/test/resources/eu/dnetlib/dhp/actionmanager/datacite/dataset/part-00000.parquet differ