Stage (II) of the development process focused on narrowing down the choice to 40 whole building rating systems which were further analyzed based on their scope, applicability, adaptability, transparency and relevance. The main outcome of this stage indicated that several systems were not original and could be considered customized versions of well-established systems. Hence, this resulted in narrowing down the list to 6 well-established rating systems and 2 Energy standards. The six rating systems were BREEAM from the UK, CASBEE from Japan, CEPAS from Hong Kong, Green Globes from Canada, LEED from the USA, and the International SBTool, where the Energy standards were CEN-ISO developed in Europe and ASHRAE from the USA.
