My Twitter correspondence with Barnet council's "engagement" wonk has led me to the discovery that Barnet's new Engage website is based on a product called "Citizen Space".
Check out Citizen Space here. On the features page you can see features familiar from the engage.Barnet website, most provocatively the "We asked, you said, we did" tab.
Mr Engage.Barnet tells me that the product will need tweaking for Barnet. Can he tweak that tab? Should say: "we proposed, you said, we went ahead and did it anyway".