Meeting Network Ready Key Performance Parameter (NR KPP) requirements for DoD systems is the key to enabling effective Network Centric Warfare (NCW). The power of NCW is derived from the effective linking geographically or hierarchically dispersed knowledgeable entities that enable them to share information and collaborate to develop shared awareness, and to achieve a degree of self-synchronization. The net result is increased combat power that can be generated by a network-centric force. Net Ready KPP is about performance parameters for exploiting information to maximize combat power by bringing more of our available information and war fighting assets to bear both effectively and efficiently, and developing collaborative working environments for commanders and soldiers to make it easier to develop common perceptions of the situation and achieve (self-) coordinated responses to situations. For training systems, Net Ready KPP applications should focus on monitoring the Soldier networks to evaluate shared awareness, self synchronization, collaboration, and NCW. This paper describes perspectives and concepts of how the Net Ready KPP should be addressed for Live Training systems by enabling the training system to manipulate the "combat" situation to evaluate Soldiers and their systems. The paper describes different types of Global Information Grid (GIG) interoperability required to support "Live" training and simulation as well as Live-Virtual-Constructive (LVC) training events. The paper also discusses interoperability concepts from a System of System (SoS) perspective.