Effigy: 1. a sculpture or model of a person. 2. a roughly made model of a particular person, made in order to be damaged or destroyed as a protest or expression of anger
You can decide which definition above fits with your standard data-access experience, but I generally find #2 to be appropriate when trying to do simple quick work.
Effigy provides two primary features:
Effigy is still currently in the early stages of development; however, it is generally stable and usable.