How Do You Test Value Propositions?

We've had a couple of people, we invited people to submit a problem that they're working on. Is something that joe and others in our business design community have been working on called the venture madlibs. So i thought, taking this challenge, we're going to just dive in, and we want to invite people to to participate on line as well. We'll make it through at least one, if not two of these this morning. The first question is how do you tackle all events? I feel ie, what you're aking mout, theyre so interesting because it's like progress.