@Geert:
No, I didn't mean to say that

Just that as a "best of breed" the UML has a graphical representation,
so the visual strong people can read our thoughts too

Of course you can leave it out.
(That's why I said,
it depends on the audience.

)
@son-of-sargasso:
And of course we could develop a new way of visualising our thoughts,
but it's better to go with the flow.
@Everybody:
I know we understand exactly what we write ourselves, but the trick
is, we don't actually write for ourselves. And the saying goes like this:
A picture is worth more than a thousand words.
So, did I mention the silly me part gheghe.
Perhaps it would be better in this case to ask the client a template (or download one), just to see at what part EA can come in handy.