Abstract
In a previously published companion paper a method for extending programming languages with timing constructs was proposed. It was shown that the extension enables the construction of real-time programs that can be proven correct independently of the properties of the machine that is used for their execution. It also yields a strict division of system construction into two phases: (1) a platform-independent programming phase that includes the expression of timing requirements, and (2) an implementation phase where all platform dependencies are addressed. In this second paper the approach is illustrated using an example problem often quoted in the literature: the mine-pump system. The two mentioned phases are described in detail for this example. First, a program is obtained in a systematic way. Then, realizations of the program under various schemes for distribution and scheduling are considered and analyzed. A comparison with other approaches to real-time programming is given.
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