Month: June 2007

Time Inversion Pattern

Intent The Time Inversion pattern is used to model dynamic collaborative behaviour between model components. To choose which responsibilities should be endowed upon a component, the modeller considers a goal that should be reached by one or more key components. This goal should be the end-goal. Reasoning backward from this end-goal the modellers searches for other components to delegate behaviour to, but in an inverted time frame: the first modelled object implements the last step in reaching...

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Active-Passive Pattern

In a previous post (The Essence of OO) I talked about two patterns in modelling complex systems that I consider to be the most important, the active/passive pattern, and the time inversion pattern. In this post more on the first, and this time the pattern is described in a pattern template. Intent A domain model will become large and very complex. The intent of the model is to capture the domain, that is: reflect the real world. This model should be functional when very small, but be willing to...

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