How do you know if your JAD is successful?

Questions to ask
    -Are your meetings well attended?
    -Are all affected parties involved/aware of decisions being made?
    -Did you solve the true underlying problem?
    -Is your solution accepted and used by your clients? 
    -Is the solution available on time?

Success Factors
   -A clear purpose shared by all team members - the project charter
   -A diverse team, representative of all areas effected by this project.
   -Every person in the group has equal responsibility and decision making power.
   -Every idea is valuable. Throughout the JAD, listen and acknowledge each idea and concern. 

   -Evaluating ideas during a brainstorming session will shut down the creative process. The best idea may never get said out of fear of being shot down.
   -Participation by everyone is very important. Encourage quieter members to speak, they often have the best ideas. Don't allow 1 or 2 members to dominate. This is the facilitators responsibility as well as the whole teams' responsibility.
   -Listen when others speak, don't interrupt or talk while others are talking (side conversations may have great ideas...we don't want to miss them).
   -Maintain a parking lot to record important issues that are not within the scope of this project.
   -Don't hold meetings, just to hold meetings. Only meet when there is something substantial to talk about.
   -Don't let more than 3 or 4 weeks pass between meetings, you will loose momentum. 

   -Remember, each meeting is a motivation for the team to complete tasks assigned. It is no fun to come to a meeting and admit you didn't finish your task.
   -Decisions are reached by consensus. We are here to create a win/win solution...win/lose solutions aren't good enough. You can reach consensus by giving everyone three options:
           -Thumbs up - I agree
           -Thumbs down - I disagree
           -Thumbs sideways - I can support this idea