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Derek-Jones / ESEUR-book

Issue handling for Evidence-based Software Engineering: based on the publicly available data
http://www.knosof.co.uk/ESEUR/
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System reliability can be more reliable than some critical subsystems depending on the archiitectural design #22

Open david-a-wheeler opened 3 years ago

david-a-wheeler commented 3 years ago

In 6.5.1:

A system is only as reliable as its least reliable critical subsystem

That's clearly not true, since error-correction mechanisms and redundancy can dramatically increase the reliability of a system even with less-reliable subsystems. Modify this, e.g.:

In many systems, depending on their architectural designs, a system is only as reliable as its least reliable critical subsystem. ...

Derek-Jones commented 3 years ago

Yes, some nuance needs to be added to that overly broad assertion.

I will try to come up with a data driven solution.