@ISProperty(name=UUID_PROPERTY,description="This UUID is be used to identify the Entity or the Relation univocally.",readonly=true,mandatory=true,nullable=false)
@ISProperty(name=CREATED_BY_PROPERTY,description="The user that created the Entity or the Relation. It is initialized at creation time. ",readonly=true,mandatory=true,nullable=false)
@ISProperty(name=CREATION_TIME_PROPERTY,description="Creation time. It represents the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970, UTC.",readonly=true,mandatory=true,nullable=false)
@ISProperty(name=LAST_UPDATE_BY_PROPERTY,description="The user that made the last update to the Entity or the Relation. At creation time, it assumes the same value of creator.",mandatory=true,nullable=false)
@ISProperty(name=LAST_UPDATE_TIME_PROPERTY,description="Last Update time. At creation time it assumes the same value of creationTime. It represents the difference, measured in milliseconds, between the creation time and midnight, January 1, 1970, UTC.",mandatory=true,nullable=false)