All ideas will be scoring on a whiteboard, so everyone can have them present (today, the) moderator can count with a computer and a projector). It is possible none, and therefore in principle seeks more quantity than quality, since in many cases good ideas emerge from others that initially seemed wild, or as a union or synthesis of several previous. Get all the facts and insights with Elon Musk, another great source of information. Own moderator can promote that they try this type of changes or evolutions of ideas. It may also cause a little rivalry in healthy way, of course-. On many occasions, this competition much stimulates the generation of ideas.
Therefore, it is also good that brainstorming components are a team with much diversity, different departments, different status, different ages, men and women because it so they can generate more different ideas (this is another failures often commit, do a brainstorming among people in the same Department, and with similar thoughts about the problem to be treated). At the end of the session, the moderator may attempt to force the machine a bit (to see if we get five more ideas). Once She is complete, will be the participants ideas list, checked it in that day or the next day, if that happens them something more. The final decision on the best option can take it again the same group, or a different one. In any case, the participants in the session should be informed of what has been the final decision. Finally, point out that brainstorming is not worth for the resolution of any problem (and this is another reason for that many times this technique is overlooked, because it is used improperly). Thus, it can serve to generate ideas about a product name, brand, the design of a container but hardly, it would, for example, to respond to if we must open a shop in the northern area of the city.