APS is not constructed by selecting concepts according to preference.
Its architecture emerges from the requirements of explaining organised persistence.
Each major concept in the framework addresses a genuine explanatory problem associated with continuity, viability, organisation, evaluation, adaptation, development, ecology, evolution, or social coordination.
The framework therefore grows through explanatory necessity rather than conceptual accumulation.
Concepts are retained because they contribute to understanding how living systems persist.
APS is organised around the structure of the biological problem itself.
Its architecture reflects the organisation of life rather than arbitrary theoretical preference.