A GovCon compliance architecture is not a collection of modules.It is ten connected subsystems producing one unbroken data lineage.

DCAA's incurred cost audit is fundamentally a lineage audit. Examiners trace a specific billed cost from the invoice back through billing records, rate application records, cost accumulation records, and finally to the original time entry or cost document. If the trace breaks at any point — if any system in the chain produces data the next system cannot consume without manual reconciliation — the gap is a potential finding. The lineage examination is how DCAA tests whether the compliance architecture is genuinely connected or merely superficially complete.

It means the system rejects non-compliant inputs before they post — not after. A timekeeping system that enforces contemporaneous entry at the point of submission rejects late entries before they become part of the labor charge record. A job costing engine that enforces FAR Part 31 allowability at the point of cost entry flags unallowable costs before they enter a pool. A billing engine that validates against contract provisions before generating an invoice catches billing errors before they are sent. Enforcement at the point of transaction means the compliance error never exists in the record — it is prevented, not corrected.

Paper 1 defined the system DCAA actually audits — the eight operational domains and six adequacy pillars at a conceptual level. Paper 2 maps that system to a concrete compliance architecture — the ten specific subsystems, what each must do, how they connect, and what the data lineage looks like in a compliant system. Paper 1 establishes the standard. Paper 2 blueprints the implementation. Papers 3 through 9 then develop each subsystem domain in operational detail.