Some scholars[note 44] use other schemes. Buddhists themselves have a variety of other schemes. Hinayana (literally "lesser vehicle") is used by Mahayana followers to name the family of early philosophical schools and traditions from which contemporary Theravada emerged, but as this term is rooted in the Mahayana viewpoint and can be considered derogatory, a variety of other terms are increasingly used instead, including Śrāvakayāna, Nikaya Buddhism, early Buddhist schools, sectarian Buddhism, conservative Buddhism, mainstream Buddhism and non-Mahayana Buddhism.