ARP4754B data control
AI requirements flowdown reconciliation for requirement allocation updates mid-program
This review checks whether supplier-implemented requirements still match the integrator's allocated requirements after mid-program updates. EE compares allocation baselines, supplier requirements, interface data, verification plans, change records, and trace exports. AI assists cross-file matching; systems and certification engineers decide each exception. The output is a flowdown discrepancy register with affected requirement, supplier, evidence, and closure path.
When this review is needed
- A review date is fixed and the ai requirements flowdown reconciliation package still contains open assumptions.
- Configuration, requirement, or method changes occurred after part of the evidence was written.
- Management needs a short exposure list tied to owners and blocked decisions.
- A prior submittal or audit question showed that the current trail is hard to reproduce.
The problem
Requirement flowdown breaks quietly. The integrator changes an allocation, the supplier keeps an old requirement, an interface control document moves, or verification continues against a superseded statement.
What gets reviewed
- Read allocated requirements for scope, assumptions, and interfaces to related plans.
- Reconcile supplier implemented requirements with ICD revisions and the controlled configuration record.
- Sample compliance statements where the highest risk claims depend on it.
- Document gaps in verification references that need engineering disposition.
- Package change log evidence so reviewers can see the trail without rebuilding it.
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Identify what is missing against the means of compliance.
What gets validated
- Document control must be able to retrieve every referenced file without interpreting informal folder names.
- The baseline test compares supplier implemented requirements with verification references and fails unresolved differences.
- Assumptions are checked where ICD revisions relies on prior credit, similarity, service history, or supplier data.
- Disposition notes are reviewed for technical content rather than simple administrative closeout.
- The final request list captures missing records separately from engineering disagreements.
Evidence normally required
- allocated requirements
- supplier implemented requirements
- ICD revisions
- compliance statements
- verification references
- change log
Common discrepancies
- requirements lost between allocation revision cycles.
- ICD changes that never reached the supplier baseline.
- compliance statements written against an allocation two revisions old.
What is at stake
A mismatch found during verification can force redesign, retest, supplier rework, or a late certification rationale. The program then has to decide whether the evidence proves the allocated requirement or only the supplier's outdated interpretation.
How the work runs
Set the allocation baseline
Identify the integrator requirement set, supplier scope, change point, and verification gate.
Compare supplier implementation
Map supplier requirements, interfaces, plans, and verification evidence against allocations.
Classify mismatches
Separate stale text, missed flowdown, design conflict, and verification-plan gaps.
Return supplier actions
Deliver a discrepancy register with owner, source, and required disposition.
What the buyer receives
- Finding support matrix
- Revision and assumption log
- Open question list
- Closure evidence package
- Limits memo for ai requirements flowdown reconciliation
Who uses the output
- systems engineer prioritizes source record recovery.
- supplier program manager confirms engineering dispositions.
- certification engineer keeps the closure package aligned with the baseline.
How the work fits into the transaction or program
This belongs after allocation updates, before supplier verification, and before integration evidence is accepted. It does not approve requirements or supplier design. It gives both sides a precise list of flowdown conflicts before they become verification failures.
Start with a single asset
Reduce finding cycles by checking the package first.
Regulatory limits
This work does not certify the article, approve a plan, or close a finding by itself. It prepares the ai requirements flowdown reconciliation record set for review by the responsible engineering, delegation, and authority personnel.
What this review does not cover
- Supplier contract enforcement
- Final airworthiness determination
- Approval of plans or reports
- Tool qualification package development
Specific to this review
- The review compares integrator allocation, supplier implementation, and verification evidence as one chain.
- Change records are used to explain why two requirement sets diverged.
- Interface requirements are checked because they often carry hidden certification effects.
- AI helps locate mismatched statements across tools, but engineers decide disposition.
- The register names the affected requirement, supplier owner, evidence state, and closure route.
Sources
SAE International. Development assurance process at aircraft and system level, including requirements capture and validation.
RTCA. Objectives and lifecycle data for airborne software assurance, by design assurance level (DAL A-E).
Frequently asked questions
Is this a requirements management tool?
No. It is a focused reconciliation review using the program's existing exports and source records.
Who resolves a flowdown conflict?
The responsible integrator and supplier engineering roles resolve it. The review makes the conflict and evidence trail explicit.
Relevant glossary terms
Related pages
Where this fits
Talk to an engineer who has done this work
We will walk through your current state, the records or evidence involved, and a scoped first engagement.
Talk through the aircraft, records, evidence, deadline, and next useful step.