bOP is an open source application development framework primarily focused on information systems. The architecture is layered, so you can use just a little bit, the whole thing, or somewhere in between. bOP has about 250 classes.

The first step is to read why bOP? This will give you a feeling for the problem bOP evolved to solve.

Visit the bOP Pet Shop to see bOP in action. And, if you look carefully, there's a

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And, of course, you can download bOP in one go:

Bivio-bOP-6.63.tar.gz (2004KB)   README