The UN System of Environmental-Economic Accounting Ecosystem (SEEA EA) aims at regular and standardised stocktaking the extent ecosystems, their condition, services they provide to society. Recording condition ecosystems is one most complex pieces in this exercise needs be supported by consistent guidelines. SEEA EA defines an ecosystem as its overall quality, measured terms quantitative metric...

in the science of operation research and decision theory, selection is the most important process. selection is a process that studies multiple qualitative and quantitative criteria, related to the science of management, which are mostly incompatible with each other. the multi criteria selection of a renewable energy portfolio is one of the main issues considered in multi criteria literature. i...