Having generated utility trajectories over the distribution of possible degradation and recovery sequences for each design vector, summary statistics are collected to measure central tendency of lifecycle survivability. Phase 7 consists of three tasks: (7.1) establish percentile reporting levels, (7.2) calculate time-weighted average utility, and (7.3) calculate threshold availability. Before describing the three tasks of Phase 7, the survivability metrics introduced in Section 3.3 are briefly reviewed.