And with dialogue I don't mean a rote asking of questions on a canned list. I mean actually talking with and working with the client to find out what is going on. There are many useful tricks that can be applied, but in its simplicity it is just talking WITH the client. Don't just talk TO her, don't just get HER to talk, it has to be a two-way interchange. YOU need to be interested and involved.
Most people know how to do that, but many forget about it while they are being process facilitators.
A simple issue might be resolved with dialoguing alone, or with closely related techniques. Maybe the client just hadn't quite looked at the issue, and its resolution becomes apparent just by talking about it. The facilitator's questions will usually bring some material to light that was otherwise hidden. So, through dialoguing the issue will either resolve, or it will become apparent what the situation is. That allows the facilitator to determine which of the available tools would be best suited for the situation.