Please identify the three (3) pillars, and provide a short description for each?

we learned that Crowdsourcing can be a very valuable tool for promoting and developing three main pillars of an open government.  According to the Executive Office of the President (2009), Open Government Directive, Crowdsourcing ideas in the public sector identifies and defines those three pillars as?

Q1: Please identify the three (3) pillars, and provide a short description for each?