Intheworldweliveinconcurrencyisthenorm.Forexample, thehumanbody isamassivelyconcurrentsystem, comprisingahugenumberofcells, allsim- taneously evolving and independently engaging in their individual biological processing.Inaddition, inthebiologicalworld, trulysequentialsystemsrarely arise. However, they are more common when manmade artefacts are cons- ered. In particular, computer systems are often developed from a sequential perspective. Why is this? The simple reason is that it is easier for us to think about sequential, rather than concurrent, systems. Thus, we use sequentiality as a device...

Intheworldweliveinconcurrencyisthenorm.Forexample, thehumanbody isamassivelyconcurrentsystem, comprisingahugenumberofcells, allsim- taneously evolving and independently engaging in their individual biological processing.Inaddition, inthebiologicalworld, trulysequentialsystemsrarely arise. However, they are more common when manmade artefacts are cons- ered. In particular, computer systems are often developed from a sequential perspective. Why is this? The simple reason is that it is easier for us to think about sequential, rather than concurrent, systems. Thus, we use sequentiality as a device...