diff --git a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Dataset.java b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Dataset.java
index 07ddbb00e..b5587c6b7 100644
--- a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Dataset.java
+++ b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Dataset.java
@@ -10,6 +10,7 @@ public class Dataset extends Result implements Serializable {
 
 	private Field<String> storagedate;
 
+	// candidate for removal
 	private Field<String> device;
 
 	private Field<String> size;
diff --git a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Software.java b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Software.java
index 40332bf53..d25b5c9ce 100644
--- a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Software.java
+++ b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/oaf/Software.java
@@ -10,8 +10,10 @@ public class Software extends Result implements Serializable {
 
 	private List<Field<String>> documentationUrl;
 
+	// candidate for removal
 	private List<StructuredProperty> license;
 
+	// candidate for removal
 	private Field<String> codeRepositoryUrl;
 
 	private Qualifier programmingLanguage;