[lmm]

> Developing a plan is not waterfall. Designing an Architecture is not waterfall.

Yes it is. Fundamentally, any project stage that you can finish without delivering a working system to the end user is waterfall.

> Agile is about adapting to change as it occurs - how do you know if there is any change if you didn't start with a plan?

Why do you care whether there is change? The whole point of agile is that it doesn't matter if the customer's requirements change, you'll deliver value to them just as effectively whether they do or don't.