According to RUP (Rational Unified Process), "A use case describes a sequence of actions a system performs that yields an observable result of value to a particular actor."  Use Cases are requirements, and without a keen understanding of your customer's meaning of value even the most well defined requirements will fail to deliver on their promise.  The meaning of value and developing an understanding with the stakeholder can be the most challenging part of the requirements gathering process. Gaining consensus with the stakeholder must be achieved before the requirements gathering process can begin. "Theory of value" is a term which encompasses all the theories within economics that explain the worth of goods and services. Rivera will discuss the "Theory of Value" as it relates to the requirements management process and how to gain an common understanding with the stakeholder to ensure project success.

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