Multidisciplinarity is a non-integrative mixture of disciplines in that each discipline retains its methodologies and assumptions without change or development from other disciplines within the multidisciplinary relationship.
Multidisciplinarity is distinctly different than Interdisciplinarity because of the relationship that the disciplines share. Within a multidisciplinary relationship this cooperation "may be mutual and cumulative but not interactive" while interdisciplinarity blends the practices and assumptions of each discipline involved.