Energy is an essential resource across the entire food production cycle, with estimates showing an average of 7-10 calories of input being required in the production of one calorie of food.

In turn, many proponents of "peak oil" theory, the idea that the global rate of oil production has entered a terminal decline, have insisted that the cable confirms their view on resource scarcity.

Constraints imposed by the specific production systems involved in the architecture (typically resource constraints, such as memory or maximum number of connections to the database machine).