Abstract: Systems and associated methods are disclosed for conducting commissioning processes, including, by way of example, building commissioning, operational efficiency, building forensics, sustainable design and operations consulting, retro-commissioning, ongoing monitoring-based commissioning, building forensic investigations, energy audits, environmental design, and high performing buildings. Additionally, systems and associated methods are provided for such commissioning and the application of sustainable development principles. Furthermore, a computer readable storage medium encoded with programming for implementing methods for such commissioning is provided.