Which sequence best represents the full lifecycle and READ-E levels described?

Which sequence best represents the full lifecycle and READ-E levels described?

• A. Maintenance, READ-E4, Shakedown w/ READ-E5, Basic, READ-E6, Advanced, Integrated, READ-E7, INSURV, Sustainment, READ-E1, E2, E3
• B. Maintenance, READ-E1, E2, E3, READ-E4 through READ-E7
• C. Basic, READ-E6, Advanced, READ-E7
• D. Maintenance, READ-E4, Shakedown w/ READ-E5, Basic, READ-E6, Advanced, Integrated, READ-E7, INSURV, Sustainment, READ-E1, E2, E3

Answer: (D)

Understanding how a system moves through a complete readiness lifecycle is key here. The sequence starts with maintenance to ready the system for the next steps, then progresses through the higher READ-E levels in order: moving into READ-E4 for early readiness development, performing a Shakedown with READ-E5 to verify basic operability, advancing to Basic (READ-E6) to establish fundamental capabilities, and reaching Advanced and Integrated (READ-E7) to show full integration and higher proficiency. After achieving this level of readiness, an INSURV inspection is conducted to formally certify that the ship meets required standards. Once certified, Sustainment maintains and supports ongoing readiness. Finally, the cycle returns to the initial, lower READ-E levels (READ-E1 through READ-E3), representing the re-entry into earlier readiness states as the system begins a new cycle of maintenance and upgrades. This order captures the complete flow from preparation and qualification through verification, long-term support, and restart of readiness.

Understanding how a system moves through a complete readiness lifecycle is key here. The sequence starts with maintenance to ready the system for the next steps, then progresses through the higher READ-E levels in order: moving into READ-E4 for early readiness development, performing a Shakedown with READ-E5 to verify basic operability, advancing to Basic (READ-E6) to establish fundamental capabilities, and reaching Advanced and Integrated (READ-E7) to show full integration and higher proficiency. After achieving this level of readiness, an INSURV inspection is conducted to formally certify that the ship meets required standards. Once certified, Sustainment maintains and supports ongoing readiness. Finally, the cycle returns to the initial, lower READ-E levels (READ-E1 through READ-E3), representing the re-entry into earlier readiness states as the system begins a new cycle of maintenance and upgrades. This order captures the complete flow from preparation and qualification through verification, long-term support, and restart of readiness.