diff --git a/CHANGES.md b/CHANGES.md
index 6b0a2ff..9e73eb0 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,8 +2,9 @@
 
 ## Changelog
 
-| **Version** | **Changes**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | **Readiness** |
-|-------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
+| **Version** | **Changes**                                                                                                                                                                                                                                                                                 | **Readiness** |
+|-------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
+| 2.12.0      | [Graph model] </br> <ul><li>Introducing EOSC Services as datasources</li>  <ul> | beta |
 | 2.11.33     | [Scholexplorer] </br> <ul><li>Moved Scholix API Data model into dhp-schemas</li><li>implementation of the compareTo method on Scholix objects and all model properties</li> <li>Unit Test to verify that compareTo works on different case</li>  <ul>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | beta |
 | 2.10.31     | [Minor] </br>NPE checks                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | beta |
 | 2.10.30     | [Minor] </br>added comparator for refereed field instances                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | beta |
diff --git a/pom.xml b/pom.xml
index a69fbfd..ff8ae1e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,8 +5,7 @@
     <groupId>eu.dnetlib.dhp</groupId>
     <artifactId>dhp-schemas</artifactId>
     <packaging>jar</packaging>
-    <version>2.11.34-SNAPSHOT</version>
-
+    <version>2.12.0-SNAPSHOT</version>
 
     <licenses>
         <license>
diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/Datasource.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/Datasource.java
index 7e59372..54cfc8a 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/oaf/Datasource.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/Datasource.java
@@ -11,10 +11,16 @@ public class Datasource extends OafEntity implements Serializable {
 	 */
 	private static final long serialVersionUID = 1019089598408414496L;
 
+	@Deprecated
 	private Qualifier datasourcetype;
 
+	@Deprecated
 	private Qualifier datasourcetypeui;
 
+	private Qualifier eosctype; // Data Source | Service
+
+	private Qualifier eoscdatasourcetype;
+
 	private Qualifier openairecompatibility;
 
 	private Field<String> officialname;
@@ -40,14 +46,21 @@ public class Datasource extends OafEntity implements Serializable {
 	private List<StructuredProperty> subjects;
 
 	// opendoar specific fields (od*)
+	@Deprecated
 	private Field<String> odnumberofitems;
 
+	@Deprecated
 	private Field<String> odnumberofitemsdate;
 
+	@Deprecated
 	private Field<String> odpolicies;
 
+	@Deprecated
 	private List<Field<String>> odlanguages;
 
+	private List<String> languages;
+
+	@Deprecated
 	private List<Field<String>> odcontenttypes;
 
 	private List<Field<String>> accessinfopackage;
@@ -59,8 +72,10 @@ public class Datasource extends OafEntity implements Serializable {
 
 	private Field<String> missionstatementurl;
 
+	@Deprecated
 	private Field<Boolean> dataprovider;
 
+	@Deprecated
 	private Field<Boolean> serviceprovider;
 
 	// {open, restricted or closed}
@@ -75,23 +90,24 @@ public class Datasource extends OafEntity implements Serializable {
 	// {feeRequired, registration, other}
 	private Field<String> datauploadrestriction;
 
+	@Deprecated
 	private Field<Boolean> versioning;
 
-	private Field<String> citationguidelineurl;
+	private Boolean versioncontrol;
 
-	// {yes, no, uknown}
-	private Field<String> qualitymanagementkind;
+	private Field<String> citationguidelineurl;
 
 	private Field<String> pidsystems;
 
 	private Field<String> certificates;
 
+	@Deprecated
 	private List<KeyValue> policies;
 
 	private Journal journal;
 
 	// New field for EOSC
-	private List<String> providedentitytypes;
+	private List<String> researchentitytypes;
 
 	// New field for EOSC
 	private List<String> providedproducttypes;
@@ -102,18 +118,25 @@ public class Datasource extends OafEntity implements Serializable {
 	// New field for EOSC
 	private Boolean thematic;
 
-	// New field for EOSC
-	private Boolean knowledgegraph;
-
 	// New field for EOSC
 	private List<Qualifier> contentpolicies;
 
+	private String submissionpolicyurl;
+
+	private String preservationpolicyurl;
+
+	private List<String> researchproductaccesspolicies;
+
+	private List<String> researchproductmetadataaccesspolicies;
+
 	private Boolean consenttermsofuse;
 
 	private Boolean fulltextdownload;
 
 	private String consenttermsofusedate;
 
+	private String lastconsenttermsofusedate;
+
 	public Qualifier getDatasourcetype() {
 		return datasourcetype;
 	}
@@ -130,6 +153,22 @@ public class Datasource extends OafEntity implements Serializable {
 		this.datasourcetypeui = datasourcetypeui;
 	}
 
+	public Qualifier getEosctype() {
+		return eosctype;
+	}
+
+	public void setEosctype(Qualifier eosctype) {
+		this.eosctype = eosctype;
+	}
+
+	public Qualifier getEoscdatasourcetype() {
+		return eoscdatasourcetype;
+	}
+
+	public void setEoscdatasourcetype(Qualifier eoscdatasourcetype) {
+		this.eoscdatasourcetype = eoscdatasourcetype;
+	}
+
 	public Qualifier getOpenairecompatibility() {
 		return openairecompatibility;
 	}
@@ -258,6 +297,14 @@ public class Datasource extends OafEntity implements Serializable {
 		this.odlanguages = odlanguages;
 	}
 
+	public List<String> getLanguages() {
+		return languages;
+	}
+
+	public void setLanguages(final List<String> languages) {
+		this.languages = languages;
+	}
+
 	public List<Field<String>> getOdcontenttypes() {
 		return odcontenttypes;
 	}
@@ -354,6 +401,14 @@ public class Datasource extends OafEntity implements Serializable {
 		this.versioning = versioning;
 	}
 
+	public Boolean getVersioncontrol() {
+		return versioncontrol;
+	}
+
+	public void setVersioncontrol(Boolean versioncontrol) {
+		this.versioncontrol = versioncontrol;
+	}
+
 	public Field<String> getCitationguidelineurl() {
 		return citationguidelineurl;
 	}
@@ -362,14 +417,6 @@ public class Datasource extends OafEntity implements Serializable {
 		this.citationguidelineurl = citationguidelineurl;
 	}
 
-	public Field<String> getQualitymanagementkind() {
-		return qualitymanagementkind;
-	}
-
-	public void setQualitymanagementkind(final Field<String> qualitymanagementkind) {
-		this.qualitymanagementkind = qualitymanagementkind;
-	}
-
 	public Field<String> getPidsystems() {
 		return pidsystems;
 	}
@@ -402,12 +449,12 @@ public class Datasource extends OafEntity implements Serializable {
 		this.journal = journal;
 	}
 
-	public List<String> getProvidedentitytypes() {
-		return providedentitytypes;
+	public List<String> getResearchentitytypes() {
+		return researchentitytypes;
 	}
 
-	public void setProvidedentitytypes(final List<String> providedentitytypes) {
-		this.providedentitytypes = providedentitytypes;
+	public void setResearchentitytypes(final List<String> researchentitytypes) {
+		this.researchentitytypes = researchentitytypes;
 	}
 
 	public List<String> getProvidedproducttypes() {
@@ -434,14 +481,6 @@ public class Datasource extends OafEntity implements Serializable {
 		this.thematic = thematic;
 	}
 
-	public Boolean getKnowledgegraph() {
-		return knowledgegraph;
-	}
-
-	public void setKnowledgegraph(final Boolean knowledgegraph) {
-		this.knowledgegraph = knowledgegraph;
-	}
-
 	public List<Qualifier> getContentpolicies() {
 		return contentpolicies;
 	}
@@ -450,19 +489,59 @@ public class Datasource extends OafEntity implements Serializable {
 		this.contentpolicies = contentpolicies;
 	}
 
+	public String getSubmissionpolicyurl() {
+		return submissionpolicyurl;
+	}
+
+	public void setSubmissionpolicyurl(String submissionpolicyurl) {
+		this.submissionpolicyurl = submissionpolicyurl;
+	}
+
+	public String getPreservationpolicyurl() {
+		return preservationpolicyurl;
+	}
+
+	public void setPreservationpolicyurl(String preservationpolicyurl) {
+		this.preservationpolicyurl = preservationpolicyurl;
+	}
+
+	public List<String> getResearchproductaccesspolicies() {
+		return researchproductaccesspolicies;
+	}
+
+	public void setResearchproductaccesspolicies(List<String> researchproductaccesspolicies) {
+		this.researchproductaccesspolicies = researchproductaccesspolicies;
+	}
+
+	public List<String> getResearchproductmetadataaccesspolicies() {
+		return researchproductmetadataaccesspolicies;
+	}
+
+	public void setResearchproductmetadataaccesspolicies(List<String> researchproductmetadataaccesspolicies) {
+		this.researchproductmetadataaccesspolicies = researchproductmetadataaccesspolicies;
+	}
+
 	public Boolean getConsenttermsofuse() {
 		return consenttermsofuse;
 	}
 
-	public void setConsenttermsofuse(Boolean consenttermsofuse) {
+	public void setConsenttermsofuse(final Boolean consenttermsofuse) {
 		this.consenttermsofuse = consenttermsofuse;
 	}
 
+	public String getLastconsenttermsofusedate() {
+		return lastconsenttermsofusedate;
+	}
+
+	public void setLastconsenttermsofusedate(String lastconsenttermsofusedate) {
+		this.lastconsenttermsofusedate = lastconsenttermsofusedate;
+	}
+
 	public Boolean getFulltextdownload() {
 		return fulltextdownload;
 	}
 
-	public void setFulltextdownload(Boolean fulltextdownload) {
+	public void setFulltextdownload(final Boolean fulltextdownload) {
 		this.fulltextdownload = fulltextdownload;
 	}
 
@@ -470,134 +549,13 @@ public class Datasource extends OafEntity implements Serializable {
 		return consenttermsofusedate;
 	}
 
-	public void setConsenttermsofusedate(String consenttermsofusedate) {
+	public void setConsenttermsofusedate(final String consenttermsofusedate) {
 		this.consenttermsofusedate = consenttermsofusedate;
 	}
 
 	@Override
 	public void mergeFrom(final OafEntity e) {
 		super.mergeFrom(e);
-
-		if (!Datasource.class.isAssignableFrom(e.getClass())) { return; }
-
-		final Datasource d = (Datasource) e;
-
-		datasourcetype = d.getDatasourcetype() != null && compareTrust(this, e) < 0
-			? d.getDatasourcetype()
-			: datasourcetype;
-		datasourcetypeui = d.getDatasourcetypeui() != null && compareTrust(this, e) < 0
-			? d.getDatasourcetypeui()
-			: datasourcetypeui;
-		openairecompatibility = d.getOpenairecompatibility() != null && compareTrust(this, e) < 0
-			? d.getOpenairecompatibility()
-			: openairecompatibility;
-		officialname = d.getOfficialname() != null && compareTrust(this, e) < 0
-			? d.getOfficialname()
-			: officialname;
-		englishname = d.getEnglishname() != null && compareTrust(this, e) < 0 ? d.getEnglishname() : officialname;
-		websiteurl = d.getWebsiteurl() != null && compareTrust(this, e) < 0 ? d.getWebsiteurl() : websiteurl;
-		logourl = d.getLogourl() != null && compareTrust(this, e) < 0 ? d.getLogourl() : getLogourl();
-		contactemail = d.getContactemail() != null && compareTrust(this, e) < 0
-			? d.getContactemail()
-			: contactemail;
-		namespaceprefix = d.getNamespaceprefix() != null && compareTrust(this, e) < 0
-			? d.getNamespaceprefix()
-			: namespaceprefix;
-		latitude = d.getLatitude() != null && compareTrust(this, e) < 0 ? d.getLatitude() : latitude;
-		longitude = d.getLongitude() != null && compareTrust(this, e) < 0 ? d.getLongitude() : longitude;
-		dateofvalidation = d.getDateofvalidation() != null && compareTrust(this, e) < 0
-			? d.getDateofvalidation()
-			: dateofvalidation;
-		description = d.getDescription() != null && compareTrust(this, e) < 0 ? d.getDescription() : description;
-		subjects = mergeLists(subjects, d.getSubjects());
-
-		// opendoar specific fields (od*)
-		odnumberofitems = d.getOdnumberofitems() != null && compareTrust(this, e) < 0
-			? d.getOdnumberofitems()
-			: odnumberofitems;
-		odnumberofitemsdate = d.getOdnumberofitemsdate() != null && compareTrust(this, e) < 0
-			? d.getOdnumberofitemsdate()
-			: odnumberofitemsdate;
-		odpolicies = d.getOdpolicies() != null && compareTrust(this, e) < 0 ? d.getOdpolicies() : odpolicies;
-		odlanguages = mergeLists(odlanguages, d.getOdlanguages());
-		odcontenttypes = mergeLists(odcontenttypes, d.getOdcontenttypes());
-		accessinfopackage = mergeLists(accessinfopackage, d.getAccessinfopackage());
-
-		// re3data fields
-		releasestartdate = d.getReleasestartdate() != null && compareTrust(this, e) < 0
-			? d.getReleasestartdate()
-			: releasestartdate;
-		releaseenddate = d.getReleaseenddate() != null && compareTrust(this, e) < 0
-			? d.getReleaseenddate()
-			: releaseenddate;
-		missionstatementurl = d.getMissionstatementurl() != null && compareTrust(this, e) < 0
-			? d.getMissionstatementurl()
-			: missionstatementurl;
-		dataprovider = d.getDataprovider() != null && compareTrust(this, e) < 0
-			? d.getDataprovider()
-			: dataprovider;
-		serviceprovider = d.getServiceprovider() != null && compareTrust(this, e) < 0
-			? d.getServiceprovider()
-			: serviceprovider;
-
-		// {open, restricted or closed}
-		databaseaccesstype = d.getDatabaseaccesstype() != null && compareTrust(this, e) < 0
-			? d.getDatabaseaccesstype()
-			: databaseaccesstype;
-
-		// {open, restricted or closed}
-		datauploadtype = d.getDatauploadtype() != null && compareTrust(this, e) < 0
-			? d.getDatauploadtype()
-			: datauploadtype;
-
-		// {feeRequired, registration, other}
-		databaseaccessrestriction = d.getDatabaseaccessrestriction() != null && compareTrust(this, e) < 0
-			? d.getDatabaseaccessrestriction()
-			: databaseaccessrestriction;
-
-		// {feeRequired, registration, other}
-		datauploadrestriction = d.getDatauploadrestriction() != null && compareTrust(this, e) < 0
-			? d.getDatauploadrestriction()
-			: datauploadrestriction;
-
-		versioning = d.getVersioning() != null && compareTrust(this, e) < 0 ? d.getVersioning() : versioning;
-		citationguidelineurl = d.getCitationguidelineurl() != null && compareTrust(this, e) < 0
-			? d.getCitationguidelineurl()
-			: citationguidelineurl;
-
-		// {yes, no, unknown}
-		qualitymanagementkind = d.getQualitymanagementkind() != null && compareTrust(this, e) < 0
-			? d.getQualitymanagementkind()
-			: qualitymanagementkind;
-		pidsystems = d.getPidsystems() != null && compareTrust(this, e) < 0 ? d.getPidsystems() : pidsystems;
-
-		certificates = d.getCertificates() != null && compareTrust(this, e) < 0
-			? d.getCertificates()
-			: certificates;
-
-		policies = mergeLists(policies, d.getPolicies());
-
-		journal = d.getJournal() != null && compareTrust(this, e) < 0 ? d.getJournal() : journal;
-
-		providedentitytypes = mergeLists(providedentitytypes, d.getProvidedentitytypes());;
-
-		providedproducttypes = mergeLists(providedproducttypes, d.getProvidedproducttypes());;
-
-		jurisdiction = d.getJurisdiction() != null && compareTrust(this, e) < 0
-			? d.getJurisdiction()
-			: jurisdiction;
-
-		thematic = d.getThematic() != null && compareTrust(this, e) < 0
-			? d.getThematic()
-			: thematic;
-
-		knowledgegraph = d.getKnowledgegraph() != null && compareTrust(this, e) < 0
-			? d.getKnowledgegraph()
-			: knowledgegraph;
-
-		contentpolicies = mergeLists(contentpolicies, d.getContentpolicies());;
-
-		mergeOAFDataInfo(e);
 	}
 
 }