Derive: relationship between two requirements, used when a requirement is derived from another requirement.
This type of relationship is appropriate to link the requirements on different levels of abstraction. For example, a solution requirement derived from a business or a stakeholder requirement.

Explanation/Reference:
BABOK v.3.0 - IIBA (page 95)

Personal accountability is important for a business analyst because it ensures business analysis tasks are completed on time and to the expectations of colleagues and stakeholders. It enables the business analyst to establish credibility by ensuring that business analysis efforts meet the needs of the business.