A project in Simulation Studio (ideally) contains models and experiments that are in some way associated with each other and helps to provide organizational structure to all of your models and experiments. A project must contain at least one model and experiment, but there is no limit to how many models and experiments can be in a project. Any number of projects can be loaded into Simulation Studio at one time. In addition to organizing models and experiments, projects provide storage for factor and response definitions that can be shared across models and experiments in that project. Factors and responses are discussed in Chapter 5: Experiments.