Requirements Driven Risk. Requirements-Driven Risk (RDR) is a problem, shared across all government, industry and commercial sectors, that is probably the single biggest cause of failure to meet time, cost and performance targets for major enterprises - if you do not know if you are acquiring, assessing or supporting the right thing, what greater risk could you have? In order to minimize the impact of RDR, we must: · Understand the nature of the risk; · Minimize it by: