Phases of development and implementation have been identified by Fixsen Naoom, Blasé’, Friedman & Wallace, 2005 and include: 1) Exploration, 2) Installation, 3) Initial Implementation, 4) Full Implementation and 5) Innovation and Sustainability. Sustainability has been defined as the durable implementation of a practice at a level of fidelity that continues to produce valued outcomes (McIntosh et al., 2009).
Resources:
The National Center for Positive Behavior and Intervention Support has an entire page of district presentation, publications and training resources