If working toward a Demo, & don't want to write a Memo, could really simple slides work?
Demos not Memos was used by Matt Waite in a 2009 blog post outlining how he built PolitiFact, which won a Pulitzer Prize. And it was something drilled -- lovingly -- into my head during NICAR 12 last week in St. Louis.
I've always been a memo guy and recently graduated to bullet points ... largely because my skills hadn't caught up to my ambition. The last year has gotten better, as I've been able to churn out some data maps, I'm hoping to have turned the corner in regards to programming as well, though there is a lot of practice yet. But for the group I'm trying to convince, these slides might do the trick...?