The image is pretty much self-explanatory so no reason for me to blabber on.
Remember, preparation is important when getting ready for a mediation/negotiation, so being able to properly identify the conflict will help you move towards a viable solution. Don't forget, many times the conflict can also be a combination of the categories.
The image can be a great tidbit to add to your presentation or handout; it has worked for me in the past. Sometimes, words, spoken or written, can become boring and adding an image here or there helps liven things up a bit.