Month: January 2007

The Essence of OO

The essence of OO can be summarised in two statements: Active/passive rule Demand-chain cooperation This article introduces these two important and undervalued patterns. The Active/Passive rule This rule can be summarised as follows: “Objects that are active in the real world are modelled as passive, and vice-versa.” This is only a trick. Many modellers have stated that the object-oriented model is a representation of the real world. This is true, but not entirely. And the model...

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