As far as I'm am aware most traditional encyclopedias rely on experts for such things, backstopped by traditional corporate governance. So basically the corpora

As far as I'm am aware most traditional encyclopedias rely on experts for such things, backstopped by traditional corporate governance. So basically the corporate owners pick experts based on their own motives and those experts set the direction and fine tuning of articles. Really the only group decision making happening is small committees (who can be overriden by executives) and the board of directors.