A Risk-Based, Value-Oriented Approach to Quality Requirements

When quality requirements are elicited from stakeholders, they\´re often stated qualitatively, such as "the response time must be fast" or "we need a highly available system". However, qualitatively represented requirements are ambiguous and thus difficult to verify. The value-oriented approach to specifying quality requirements uses a range of potential representations chosen on the basis of assessing risk instead of quantifying everything.