Transcending disciplinary boundaries in interaction design

Multidisciplinarity is an approach to a particular problem space using coordinated outputs from distinct collections of methods informed by or in the service of respective distinct bodies of knowledge. Interdisciplinarity is an approach to a particular problem space using integrated outputs from combined collections of methods informed by or in the service of combined bodies of knowledge. Transdisciplinarity is an approach that focuses neither on particular collection of methods nor on particular bodies of knowledge, but rather focuses on a broader goal. A scholar or practitioner can be transdisciplinary in terms of broad perspective and still be disciplinary, multidisciplinary, or interdisciplinary in terms of approaches to more specific problems or tasks. You can be at once transdisciplinary and disciplinary, interdisciplinary, or multidisciplinary.