On ideation and iteration

http://www.theverge.com/2017/1/6/14188624/apple-prototype-iphone-ipod-click-wheel

Sample story demonstrating the core idea underneath agile development, as I understand it

It's not the formalities that mattter, but the sheer flexibility to try concepts and features, then fairly quickly deciding on why the concept works or not for the end user, before moving on to either releasing it or moving on to another idea