Which phase ensures materiel readiness and life-cycle sustainment as cost-effectively as possible?

• A. Technology Maturation and Risk Reduction (TMRR)
• B. Operations and Sustainment (O&S)
• C. Materiel Solutions Analysis (MSA)
• D. Production and Deployment

Answer: (A)

The key idea is that readiness and long-term cost-effectiveness come from the phase responsible for keeping the system operating and supported after it is fielded. Operations and Sustainment focuses on maintaining materiel readiness throughout the life cycle by designing and executing maintenance concepts, ensuring a reliable supply chain, providing training, and planning for ongoing support. This phase targets sustaining the system’s capability at the lowest total life-cycle cost, balancing readiness with affordability through spares, maintenance strategies, and logistics support.

Earlier phases are about shaping the solution—maturing technology and reducing risk, or producing and delivering the system—rather than sustaining it over its entire life.