What is a nursing or interprofessional theory conceptual model level that will be applicable in your future advanced nursing practice role?(phychiatric mental health nurse practioner)?

Briefly describe a nursing or interprofessional theory (i.e. conceptual model theory by Betty Neuman system model.
Additionally, include a brief discussion of the applicability of the theory for your chosen advanced practice nursing role.
You must include at least one primary reference for the theory on which you are writing (i.e., authored by the author(s) of the theory Betty Neuman) and, as above, you must include a primary reference for any and all material that comes from a referenced source.