This document discusses various models and issues related to collaboration within and outside of nursing. It begins by defining collaboration and explaining its importance for addressing complex health issues. Several models of collaboration are described, including the clinical school of nursing model from 1995, the dedicated education unit clinical teaching model from 1999, and the research joint appointment model from 2000. The document also covers collaborative issues that can arise within nursing between different roles, and outside nursing with other healthcare professionals. Overall, the document provides an overview of the meaning, need for, and approaches to collaboration in nursing.