What job architecture is
Job architecture is the deliberate structure of how roles are organised — the families they belong to, the sub-families and role series within them, and the grade bands that hold them. It is the layer that gives every other people decision a common reference.
Without architecture, roles accumulate as standalone titles. Movement, comparison, and pay logic all depend on case-by-case judgement, and the organisation has no shared backbone for talent flow or governance.
