> - must be fast/efficient and scale well Need to define all those terms :) "fast/efficient" to ... what? Run? Write? Maintain? What is your benchmark for

> - must be fast/efficient and scale well Need to define all those terms :) "fast/efficient" to ... what? Run? Write? Maintain? What is your benchmark for determining "fast" or "efficient"? Why that standard, and not another? "scale well" ... how? In what direction? Take advantage of more cores? Take advantage of more server instances? Take advantage of better storage speed? How "scalable" do you think your development needs to be? 1m hits per second? 1000 hits per day?