QCI is an established leader in providing systems engineering services for major system acquisitions. We support initial capability trades, requirement definition, end-to-end testing, independent technical assessments, simulations of system performance, and operations and maintenance of existing assets. We go beyond the system lifecycle by producing Functional Availability (FA) assessments with recommendations of system replenishment strategies. QCI’s ‘Quaternion-Based Approach’ (QBA) adds the multidimensional context necessary to fully evaluate different alternatives and be confident in choosing the right system requirements to drive performance up and to drive risks and costs down. At QCI, we have the capability to see an enterprise-level view of the mission and are well-positioned to give customers the confidence to make decisions with lasting value.