[IanCal]

I honestly do not understand what you're describing as the prerequisites.

You ask people how hard something is to do, make everyone actually answer before hearing others opinions and if people disagree you talk about it to understand why. These are all short term features.

The two things it deals with are:

* get everyone to say how big of a thing it is, find out if there's misunderstandings about what the task involves

* avoid people from being influenced by the fastest to answer person

That's it. It's a very basic communication tool.

[WJW]

I'm sure that's how it was intended but tbh I have only seen it used in settings where the person in charge would still want to assign a value to the ticket "so that we can move on" even if the devs were not at all in agreement about how big something was. Whoever gets the ticket in the end is stuck with the estimate, even if it was shit from the very start.