[ietf-dkim] scenarios

[Mark Delany]

> It is easy to state a functional "requirement" but it is often difficult to
> explain why it is needed or to convince people that it is essential to support
> that requirement.
> 
> The easiest way to handle this is to ensure that every functional requirement is
> explained in terms of a detailed usage scenario, so that the feasibility and
> urgency of that usage can be considered by the working group.

Quite. Given the range and scope of the alternatives being discussed,
this sure feels like a green-field design environment.

I worry that we may not even have a very good handle on what is
actually wanted in the field, consequently we risk designing something
that targets engineers as the customer.


Mark.