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Channel: design assumptions – Critical Uncertainties
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Epistemic, Ontological and Aleatory Risk

Risk is one of the central tenets of safety engineering. The concept of risk allows us to make decisions in an uncertain world where we cannot perfectly predict future outcomes. Yet when we talk about...

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On the Brittleness of Software

Reading through the BEA's precis of the data contained on AF447′s Flight Data Recorder you find that during the final minutes of AF447 the aircrafts stall warning ceased, even though the aircraft was...

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Better wrong than vague

An articulated guess beats an unspoken assumption Frederick Brooks A point that Fred Brooks makes in his recent work the Design of Design is that it’s wiser to explicitly make specific assumptions,...

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Technical debt

Paying down the debt A great term that I’ve just come across, technical debt is a metaphor coined by Ward Cunningham to reflect on how a decision to act expediently for an immediate reason may have...

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