Another GBS tool of note is Run, more formally known as the ``Crisis Management Tool.'' Students using a GBS built with Run are put in the role of the leader of an organization that is in the midst of a crisis, such as a situation manager at the scene of a house fire in a Run application called ``Fire Commander'' (or just ``Fire''). Students make decisions on sub-problems that come up as they deal with the crisis.
In Fire, students must decide how each team should put out each fire it comes upon in the house, what order to save each member of the family that lives in the house, when and if to call for backup, and so forth. For each situation, students have a list of choices, and each choice will likely lead to another problem. All of these problems run in parallel. For example, students in Fire are controlling three fire teams (groups of firefighters) who are all running into sub-problems at the same time. As with all GBSes, students have access to experts in an ASK system who can comment on both the options students have in front of them and on the mistakes students may have just made.
One such sub-problem might be putting out a grease fire in the kitchen. The student's choices might be to instruct the fire team to pour water on it, cover it with a blanket, or let it burn out. The first choice (pouring water on it) will spread the fire and cause one of the firefighters to get splashed with burning oil, giving the student another sub-problem (an injured firefighter) to solve. These sorts of solutions-causing-new-problems is called a cascading problem set.
Run applications, interface-wise, share many characteristics with other GBSes--most information is presented in video, there are just-in-time questions available at every decision point, and there is a way to browse the entire ASK system through a zoomer.