Beware Transparent Layers
Terry Crowley
851

There is some very wise guidance in here for software designers. I’ve always been suspicious of solutions that seemed too clever (except maybe my own — a different problem).

How do we identify these pitfalls? Some may need a crystal ball.

There is probably a design principle or insight here that doesn’t rely on clairvoyance. I rhink there is always a limit to layer transparency, but I don’t know how to articulate it.

Perhaps layering is something we need to do wrong a few times to see how to do it right. Network protocol layering, and its software, has clearly evolved. Otherwise the ISO 7 layers would all still apply.

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