[ta119a08]

In almost all cases, it's not that they're dogmatic, stubborn, or difficult just for the sake of it. Don't make it personal and imagine them to be poor empathizers or know-it-alls.

By shouting and getting frustrated, they're really just demonstrating that you and they have poor communication skills - in both directions. They either aren't actually understanding the broad requirements for the decision being made, and/or aren't really articulating why their take on it really is the right way to do it. They have the confidence to think that their solution is the right one for the problem as they understand it -- which is why they get loud and forceful -- but don't make legitimate progress in decision making because either the problem or solution just isn't making its way across the table effectively.

Poor communication skills are indeed very hard to deal with and rampant among people across all divisions. They may be the ones who are having a hard time regulating their emotional investment into the debate, but there are things you can do to make them more comfortable and better heard.