Concurrent Programming

Abstract

In the previous chapters we have discussed object-oriented program design, emphasising the need to write down an informal strategy to solve the problem. The informal strategy provides us with a basis of a solution since the nouns can provide us with object classes and the verbs their messages or methods. The object classes have been implemented in software using standard Modula-2 language components. These components each possess a clearly defined interface. The complete program consists of all these components assembled together with each component communicating with the others only through these interfaces. However, all the problems we have solved have been essentially sequential in nature. The computer generates a colour, then we attempt to guess it, then it gives us a hint and so on.