By Workshop Group on Theory at 2015 Basel International Transdisciplinary Conference

Theory makes clear what transdisciplinary researchers value and stand for; we therefore have a responsibility to build and articulate it.
If we think about transdisciplinary research as a space situated between different epistemic cultures and practices, as well as being culturally contextualised, we can expect different theories of transdisciplinary research, as well as different significance and functions of theory, and different ways of working with theories, in transdisciplinary research.
Theory can contribute to the identity and development of transdisciplinary research. Theory or conceptual models can provide practical guidance to the challenging problems transdisciplinary research tackles. These can help guide the transdisciplinary research process.
Theory can make certain research fields visible, giving them a place in the landscape of knowledge.