Today's sophisticated home automation systems are designed and incorporated into architectural plans at the very early stages of a project. This has played a significant role in growing the overall market for motorized shades and has moved the decision point for which shade system is used much earlier on in the construction sequence. This new reality is due to the fact that while Somfy (and all other shade motor manufacturers) uses an open wiring architecture - Lutron's is closed. How a house is wired for shades largely dictates which shades will be used.