A strategy-based ecological(?) display for time- series structural change diagnosis

Ecological Interface Design (EID) is usually associated with applying Work Domain Analysis and developing customized control tools for specific, stable systems governed by causal work domain constraints. However, for domains with weaker, intentional, less specific constraints, EID based on analysis of cognitive strategies has been proposed, and demonstrated using metaphorical iconic forms. EID methods to find invariant strategies in intentional work domains are less developed. Such methods may be a way to generalize ecological interfaces beyond specific instances of complex systems. An example developed for an energy efficiency monitoring application is presented and discussed.