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Any design issue may be reframed "up" or "down" -- the dialectic choice.

The "up" option amounts to either redefining the issue with greater abstraction, or to extending the issue over other similar design questions into a larger one.

The "down" option amounts to dividing the current issue to fairly independent parts. The division must be such that each part can be resolved with little or no consideration of what happens with the other parts.

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