A control model for a three-level man–machine production system under random disturbances is considered. The system comprises the factory level, several sections and multiple production units. The factory is faced with manufacturing several different products with planned target amounts at the...

A two-level flexible manufacturing system is considered to be composed of several different production units Ui, 1≤i≤n, at the lower level and a section at the upper one. The section is required to produce a given target amount V by a given due date D subject to a chance constraint, i.e. the...

We modify the likelihood-based method for obtaining derivatives with respect to the rate of a Poisson process to that it is not necessary to know the exact value of that rate. This type of modification is necessary if the method is to be used on a sample path from a real system. The method is...