In March 2003, the Honorable Walter W. Hollis, Deputy Under Secretary of the Army for Operations Research (DUSA(OR)) tasked the Program Manager (PM) Future Combat Systems (FCS), Models and Simulation (M&S) Management Office (MSMO) to ensure compatibility among the respective M&S capabilities of the U.S. Army Training and Doctrine Command (TRADOC), U.S. Army Test and Evaluation Command (ATEC), U.S. Army Research, Development and Engineering Command (RDECOM), and the FCS Lead Systems Integrator (LSI) to support development and acquisition of the FCS Brigade Combat Team (BCT) System-of-Systems (SoS). The Cross Command Collaboration Effort (3CE) is enabling this compatibility.

The purpose of 3CE is to develop an M&S and data collaboration environment for design, development, integration, and testing of capabilities, systems, and prototypes. The 3CE environment is intended to satisfy the common requirements of all participants to conduct distributed development that accounts for impacts across the doctrine, organizational, training, materiel, leadership and education, personnel, and facilities (DOTMLPF) domains.

3CE brings together a cross command team of subject matter experts to develop and implement a functional decomposition and analysis process - a process that is based on systems engineering principles. The 3CE functional decomposition and analysis process drives cross command design, development, and integration based on analyst and evaluator requirements. Utilizing Department of Defense Architectural Framework (DoDAF) products and cross command analytic requirement documents, this process provides a relevant and credible requirement set that is explicitly linked to operational use cases and is at a level of fidelity sufficient to transition into the design phase.

3CE has executed this process to identify analytic, technical, and operational requirements that will support FCS Spin Out events and activities. This paper focuses on the development and implementation of the 3CE functional decomposition and analysis process, and also offers broader uses for 3CE functional decomposition and analysis products to assist command planning in support of training, testing, and experimentation activities.