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P9316   J.J. Brunekreef & A. Ponse
        "An algebraic specification of a model factory, part IV"


In this paper a centralised control process for the DEC CEC model
factory is specified. The control process accepts product orders from
the outside world and puts the various stations of the model factory to
work by a request/reply communication. Different product types require
different station sequences. A sequence of station requests is
generated in a routing process. Two routing processes are specified:
one process oriented, the other data oriented.