System of Systems Engineering (SoSE) distinguishes four types of SoS with respect to management at the SoS
level. These types, in order of increasing authority and responsibility, are virtual, collaborative, acknowledged, and
directed9. The only types that have an SoS engineering team to oversee the development of SoS capabilities are the
acknowledged and directed SoS. Therefore, the KSS described in this paper is only intended to apply to the
acknowledged and directed software-intensive SoS.