B.1.2:4.4 - Whole-Level Characteristics

Roll up system-level characteristics only after the exact bearer, characteristic relation or assignment, scale, and aggregation or inference rule are selected under their subject patterns.

Useful families include:

• additive quantities such as mass, cost, energy stock, or material amount;
• limiting quantities such as pressure rating, weakest connector, safety class, or availability bottleneck;
• logical or capability claims such as emergency-stop availability or vulnerability exposure;
• architecture characteristics that depend on selected structure.

Use C.16, A.19, and C.29 when characteristic space, scale, threshold, or mathematical lens is relied on for the current claim. Use B.2 when redundancy, closure, or coordination creates or reveals a whole that must be reidentified.