diff --git a/core/attributedef.class.inc.php b/core/attributedef.class.inc.php
index 40324d4509..8416be1d6e 100644
--- a/core/attributedef.class.inc.php
+++ b/core/attributedef.class.inc.php
@@ -3062,6 +3062,11 @@ class AttributeObjectKey extends AttributeDBFieldVoid
 		return ((int) $proposedValue) !== 0;
 	}
 
+    /**
+     * @inheritDoc
+     *
+     * @param int|DBObject $proposedValue Object key or valid ({@see MetaModel::IsValidObject()}) datamodel object
+     */
 	public function MakeRealValue($proposedValue, $oHostObj)
 	{
 		if (is_null($proposedValue))
@@ -3074,7 +3079,6 @@ class AttributeObjectKey extends AttributeDBFieldVoid
 		}
 		if (MetaModel::IsValidObject($proposedValue))
 		{
-			/** @var \DBObject $proposedValue */
 			return $proposedValue->GetKey();
 		}
 
@@ -6511,6 +6515,11 @@ class AttributeDateTime extends AttributeDBField
 		}
 	}
 
+    /**
+     * @inheritDoc
+     *
+     * @param int|string $proposedValue timestamp ({@see DateTime::getTimestamp()) or date as string, following the {@see GetInternalFormat} format.
+     */
 	public function MakeRealValue($proposedValue, $oHostObj)
 	{
 		if (is_null($proposedValue))
@@ -8300,9 +8309,9 @@ class AttributeBlob extends AttributeDefinition
 	}
 
 	/**
-	 * Users can provide the document from an URL (including an URL on iTop itself)
-	 * for CSV import. Administrators can even provide the path to a local file
-	 * {@inheritDoc}
+     * {@inheritDoc}
+     *
+     * @param string $proposedValue Can be an URL (including an URL to iTop itself), or a local path (CSV import)
 	 *
 	 * @see AttributeDefinition::MakeRealValue()
 	 */
diff --git a/core/dbobject.class.php b/core/dbobject.class.php
index 317239d1a5..63b8784c68 100644
--- a/core/dbobject.class.php
+++ b/core/dbobject.class.php
@@ -608,11 +608,10 @@ abstract class DBObject implements iDisplay
      * Attributes setter
      *
      * Set $sAttCode to $value.
-     * The value must be valid according to the type of attribute.
+     * The value must be valid according to the type of attribute : see the different {@see AttributeDefinition::MakeRealValue()} implementations
      * The value will not be recorded into the DB until DBObject::DBWrite() is called.
      *
      * @api
-     * @see DBWrite()
      *
      * @param string $sAttCode
      * @param mixed $value
@@ -620,6 +619,8 @@ abstract class DBObject implements iDisplay
      * @return bool
      * @throws CoreException
      * @throws CoreUnexpectedValue
+     *
+     * @see DBWrite()
      */
 	public function Set($sAttCode, $value)
 	{