System of Environmental-Economic Accounting 2012 Experimental Ecosystem Accounting is an addition to the System of Environmental-Economic Accounting 2012 Central Framework. Where the Central Framework approaches data collection from an economic perspective, the Experimental Ecosystem Accounting framework approaches data collection from an environmental perspective and analyzes its interactions with the economy. The Central Framework and Experimental Ecosystem Accounting frameworks can be used in conjunction to provide a comprehensive description of the interactions between the environment, economy, and human activity.