Stephen DeCanio faculty at the UCSB in 1978. From 1986 to '87 he was the Senior Staff Economist at the President's Council of Economic Advisors. He was also a member of the United Nations Environment Programme Economic Options Panel, which reviewed the economic aspects of the Montreal Protocol on Substances that Deplete the Ozone Layer. In 1996 he was awarded the Stratospheric Ozone Protection Award by the United States Environmental Protection Agency and in 2007 he was presented with the Leontief Prize for advancing the frontiers in economic thought by the Global Development and Environment Institute. He participated in the Intergovernmental Panel
Separation of concerns 1989, Chris Reade wrote a book titled "Elements of Functional Programming" that describes separation of concerns: Reade continues to say, Separation of concerns is crucial to the design of the Internet. In the Internet Protocol Suite, great efforts have been made to separate concerns into well-defined layers. This allows protocol designers to focus on the concerns in one layer, and ignore the other layers. The Application Layer protocol SMTP, for example, is concerned about all the details of conducting an email session over a reliable transport service (usually TCP), but not in the least concerned about how the transport service