. . "It says that we haveto build quality, especially safety, in from thebeginning, not try to add it at the end, andthus must take defect-preventing actions likerequirements, design, and code reviews.The standard also insists that we know whatconstitutes tolerable and intolerable risks andthat we take steps to reduce intolerable risks.When those steps are testing steps, we mustdocument them, including" . .