Centers In Software

What are the centers in software? Are there any?

What Alexander calls a "center" is something that is defined in terms of other centers. A center is something that holds your attention, something that you notice and might name.

A method and a class are probably centers. A class is made up of methods, so that fits. But classes are pretty small. A pattern like Composite or Strategy is made up of several classes, and they are probably centers, too. A subsystem would be a center, as would a complete application. So, there will be centers at many levels, and larger centers are made up of smaller centers.

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