BOUNDARY SYSTEM By N., Pam M.S. - April 7, 2013 General systems theory. The boundary between living organisms that is semi-permeable. See ego boundary. BOUNDARY SYSTEM: "The boundary system allows information to flow in either direction." Related Psychology Terms BOUNDARY SYSTEM INTERNAL BOUNDARY PERMEABILITY BIOGENESIS TELEONOMY BIOSPHERE EXTERNAL BOUNDARY BIOTAXIS FEAR RESPONSE BALANCE THEORY Cite this page: N., Pam M.S., "BOUNDARY SYSTEM," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/boundary-system-2/ (accessed April 17, 2021).