ABSTRACT
When operators of complex plants are faced with a planning task, they find themselves in an environment designed with very specific purposes in mind. However, the support they receive, typically in the form of a prescribed procedure, does not reveal much of this knowledge to the operator. In this chapter we first discuss how existing procedures can be analyzed to capture some of the designer’s intentions with the plant and the procedures. Then we will discuss how Multilevel Flow Modeling can be used to identify the means and ends of the plant, and lastly we will show how the two representations relate. The two representations are combined into a representation of tasks, which may serve as a basis for a planning support system for the operator or as a scheme to interpret the actions of the operator.
