Contingengy percentage and which specs. provide most flexibility

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    John Koelsch

    Contingencies are typically 10% in questions I've seen in practice exams, performance specs provide the most flexibility since operational requirements of the component are described rather than the physical characteristics like in prescriptive or proprietary

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    Matthew Bowers

    Contingencies decrease as project phases progress, considering that estimates become more refined from SD>DD>CD. From my notes, I have 10-15% for SD, 5-15% for DD, and 3-5% for CD.

    The other contingency to be aware of is a 10% schedule/time contingency for the design phases.

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    Prajakta Dabhade

    Thank you John and Matthew! Much appreciated .

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