Engineering · Manufacturing · PPAP Handbook
PPAP Dimensional Results and Ballooned Drawing Traceability
A detailed handbook for dimensional-result reporting, balloon-number traceability, sample quantity, drawing notes, special characteristics, nonconformance and approval.
- Handbook chapter
- ~11 min read
- Source pages 9-9
- 13 source assessment prompts
- Dark / light theme ready
Executive summary
The dimensional-results section expects every design-record requirement to have traceable evidence. The source requires dimensions to reference a ballooned customer drawing or characteristics library, drawing notes and other requirements to receive an actual response, special characteristics to be highlighted, and results to meet design-record requirements. It explicitly says that a pass/fail statement is unacceptable where actual results are expected. It also gives a source-specific sample expectation of five parts unless otherwise directed by SDE and expects any nonconformance to be highlighted and supported by deviation—or the PPAP is rejected.
01How to use this chapter
This chapter separates the uploaded assessment criteria from practical KEVOS implementation guidance. The section titled Source-derived assessment criteria preserves the intent, terminology and checklist detail supplied in the uploaded PPAP Assessment. The surrounding handbook guidance explains how a manufacturing or supplier-quality team can organise evidence, perform a readiness review and spot gaps before formal submission. Where the uploaded source states a numeric threshold, edition reference or customer-specific expectation, it is identified as source-derived rather than presented as a universal rule.
Use the chapter in three passes. First, read the purpose and workflow to understand what the element is meant to prove. Second, work through the source-derived prompts against the actual part number, engineering revision and production process. Third, close the red flags and collect objective evidence before the package is released. For large PPAPs, record the evidence location beside each source prompt so another reviewer can repeat the assessment without relying on verbal explanation.
02Handbook workflow
- Lock the characteristic listUse the same balloon/characteristic identity established from the current design record.
- Confirm the sample requirementUse the agreed sample quantity. The source states five parts unless otherwise directed by SDE, so customer direction takes precedence.
- Measure every applicable requirementInclude dimensions, drawing notes, specifications and other characteristics rather than only the easiest variable dimensions.
- Report actual evidenceWhere the requirement calls for a numerical or descriptive result, report that result; do not replace it with a generic pass/fail entry.
- Highlight special characteristicsMake them easy to find and cross-reference them to capability/control evidence.
- Control exceptionsClearly identify any nonconformance and attach the approved deviation or treat the submission as not conforming.
- Approve the recordEnsure the inspection sheets are legible, understandable, in the required language/unit format and signed/approved as required.
03Evidence package to retain
The assessment is stronger when each conclusion points to a controlled record rather than a statement that the requirement is “covered”. The following evidence set is a practical minimum for this chapter; actual customer and contractual requirements govern the live submission.
- Ballooned customer drawing or controlled characteristic library
- Dimensional-result sheet with actual values
- Evidence that drawing notes/specification requirements are included
- Agreed sample quantity
- Special-characteristic highlighting
- Part number and engineering revision
- Inspection method/equipment reference where required
- Approval/signature status
- Deviation for any accepted nonconformance
04Source-derived assessment criteria
The prompts below are taken from the uploaded 15-page PPAP Assessment and kept as assessment questions. The source uses the term “Organization” for the customer/receiving organisation in many places.
2.2.9 Dimensional Results
Report complies with Organization Sample Report Form or minimally complies with AIAG format or equivalent. Correct part number and change level. All identified and documented dimensions match with the Design Record and are within specification/tolerance. Results for specification should reference those documents and location within document.
- 1.Are the dimensions references on a ballooned customer drawing or documented within a characteristics library?
- 2.If reported from ballooned drawing is there evidence that all specification and other requirements were documented?
- 3.Are the correct numbers of parts laid out? (Five (5) parts unless other wise directed by SDE)
- 4.Do all requirements, including drawing notes have a response (pass/fail statement is unacceptable)?
- 5.Are all Special Characteristics highlighted?
- 6.Do results meet all Design Record Requirements?
- 7.Are any nonconformance highlighted in the report? if yes deviation or PPAP rejection!
- 8.Is layout result legible and understandable?
- 9.Are the Dimension Result sheets completely in English?
- 10.Are the inspection sheets approved and signed?
- 11.Is all reporting in customer format (English or Metric)?
- 12.Is all reporting against Organization specification?
- 13.Results indication print location or specification location.
05Common red flags
These are practical review signals derived from the relationships and controls repeatedly required by the source. A red flag does not automatically mean the submission must be rejected; it means the condition deserves documented resolution before approval.
- A pass/fail entry replaces an actual measurement
- Some drawing notes have no corresponding result
- Balloon numbers do not match the current design record
- Special characteristics are buried among normal characteristics
- The sample quantity is lower than the agreed requirement without waiver
- A result is out of specification but the package contains no deviation
- Report units differ from the Organization/customer reporting convention
06Cross-document interfaces
PPAP elements should not be reviewed as isolated files. Check the following interfaces for consistent part identity, revision, characteristic naming, operation numbering and control logic.
Design record
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
MSA
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
Capability studies
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
Checking aids
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
Control plan
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
Deviation/change documents
Confirm controlled linkage, current revision and consistent characteristic/process identity across this interface.
07Assessor close-out checklist
- The element is present or a controlled waiver/agreement explains why it is not required.
- The submitted record identifies the correct part number and engineering revision where applicable.
- The evidence is legible, understandable, controlled and traceable to the submitted product/process.
- Special characteristics and known customer concerns are treated consistently across related documents.
- Any nonconformance, temporary control, deviation or interim condition is visible and formally dispositioned.
- Actions have owners, due dates and objective closure evidence where the source expects corrective action.
- The final conclusion can be independently repeated by another reviewer using the package alone.
08Frequently asked questions
How many parts should be dimensionally laid out?
The uploaded assessment states five parts unless otherwise directed by SDE. Treat that as source-specific guidance and follow the actual agreed customer submission requirement.
Is pass/fail acceptable?
The source explicitly says pass/fail is unacceptable for requirements that should have actual reported results.
What happens if one result is nonconforming?
The assessment expects the nonconformance to be highlighted and an approved deviation to be provided; otherwise it states the PPAP should be rejected.
Why use balloon numbers?
They create direct traceability from each design-record requirement to the dimensional evidence and reduce the risk that a note or feature is silently omitted.
09Source and limitations
Primary source: uploaded Production Part Approval Process (PPAP) Assessment / PPAP Submission Assessment, 15 pages, Quality-One. Source sections used on this page: 2.2.9 Dimensional Results. Approximate source page coverage: 9-9.
This KEVOS chapter is an educational and assessment aid. It preserves the uploaded document's criteria but does not replace controlled customer-specific requirements, engineering specifications, contractual requirements or an official PPAP/APQP manual. Where the source references “PPAP 4th edition”, AIAG methods, Organization systems or Organization-specific targets, those references are retained as source context rather than silently updated or generalized.
Handbook application: from concept to controlled practice
Purpose. This expanded section turns the original page into a practical handbook. It preserves the supplied material and adds a repeatable way to apply, check and review PPAP Dimensional Results and Ballooned Drawing Traceability. It does not replace a contract, legislation, a controlled standard, competent engineering judgement or specialist advice.
The operating aim is to carry the subject from function and assumptions through design evidence, verification and controlled release. Read the original explanation first, then use the workflow and checks below to convert knowledge into evidence.
Apply PPAP Dimensional Results and Ballooned Drawing Traceability by beginning with the duty, not the component or software command. Convert the key ideas—ppap, dimensional, results, drawing, traceability—into measurable requirements and interfaces. Record operating and non-operating environments, duty cycle, expected life, loads, energy sources, human interaction and reasonably foreseeable abnormal conditions. When a value is not a project requirement or verified supplier datum, identify it as an assumption or illustrative value.
Create a calculation and evidence trail that another competent person can audit. Every input should carry a source, unit, revision and uncertainty or tolerance where relevant. Every model should state its boundary conditions and limitations. Keep nominal capacity separate from design capacity, and keep verification margin separate from an arbitrary safety factor. If a code or standard governs the work, confirm the applicable edition and contractual status rather than copying a number from a secondary summary.
Design for manufacture, assembly, inspection, operation and maintenance at the same time. A technically valid geometry can still fail because it cannot be fixtured, measured, cleaned, guarded, reached or replaced. Review process capability, datum or reference strategy, tolerance accumulation, access, error-proofing and changeover. Where people interact with plant, apply the hierarchy of controls and consult those who will operate, clean, maintain and recover the equipment.
Plan verification before release. Define the characteristic, method, equipment, sample or test condition, acceptance criterion, record and responsible person. Validation then asks a different question: whether the resulting system is effective and suitable in the intended use context. A passed drawing check or analysis does not by itself validate usability, maintainability or production performance.
Step-by-step operating method
- Define the duty. Capture the required function, interfaces, operating environment, life, loads and unacceptable outcomes.
- Establish the model. Identify governing principles, units, material or process data, assumptions and uncertainty.
- Develop alternatives. Compare feasible concepts against performance, manufacturability, safety, maintainability and cost.
- Verify the design. Use analysis, test, inspection or demonstration with acceptance criteria defined before execution.
- Release and learn. Baseline the design, control changes, retain evidence and feed operating results into the next revision.
Illustrative design review record
Illustrative values only. Build a one-page record with the required function, input sources, assumptions, governing load or process condition, failure consequences, selected concept, verification method and acceptance criterion. Mark every numerical input as project requirement, verified supplier data, measured value, calculation output or assumption. Review the weakest evidence first. If an assumption can change safety, compliance, interchangeability or capacity, it must be resolved before release rather than buried in a calculation note.
| Evidence class | Question | Release expectation |
|---|---|---|
| Requirement | What must the design do and under which conditions? | Approved and traceable |
| Input | Where did the load, property, tolerance or process limit come from? | Source, unit and revision recorded |
| Analysis | Which model and assumptions connect input to result? | Checkable calculation or simulation |
| Verification | How will conformity be demonstrated? | Method and acceptance criterion agreed |
| Validation | Will the solution work for intended users and conditions? | Representative use evidence |
Common failure modes and recovery actions
1. Watch for
Starting detailed design before interfaces and operating limits are agreed.
Recovery: Return to the governing definition or requirement and restate the decision in one sentence.
2. Watch for
Using catalogue or typical values as though they were certified project inputs.
Recovery: Separate evidence from assumption, assign an owner and set a date for validation.
3. Watch for
Checking nominal performance while ignoring tolerances, degradation and foreseeable misuse.
Recovery: Run a small counterexample, boundary test, pilot or independent check before proceeding.
4. Watch for
Confusing verification of requirements with validation of user need.
Recovery: Record the consequence, decision and rationale, then update the controlled baseline.
5. Watch for
Releasing drawings or procedures without configuration, inspection and change controls.
Recovery: Escalate when the issue affects safety, compliance, acceptance, material value or an agreed tolerance.
Review checklist
- What function and failure consequence govern this decision?
- Which inputs are measured, specified, assumed or illustrative?
- How will conformity be demonstrated and recorded?
- What change would invalidate the current evidence?
- Are mandatory requirements distinguished from recommendations and illustrative values?
- Are sources, assumptions, units, dates and versions recorded closely enough to reproduce the decision?
- Have safety, legal, ethical, stakeholder and operational consequences been considered at the appropriate level?
- Is there a named owner and a trigger for review, escalation, change or retirement?
Questions for deeper application
What is the most important distinction a practitioner must preserve when applying PPAP Dimensional Results and Ballooned Drawing Traceability?
Answer with a fact or cited source where available. Where evidence is incomplete, record the assumption, consequence, responsible owner and next validation action.
Which assumption about ppap would change the result most if it proved false?
Answer with a fact or cited source where available. Where evidence is incomplete, record the assumption, consequence, responsible owner and next validation action.
What evidence would allow an independent reviewer to reproduce or challenge the conclusion?
Answer with a fact or cited source where available. Where evidence is incomplete, record the assumption, consequence, responsible owner and next validation action.
Which boundary, exception or failure case has not yet been tested?
Answer with a fact or cited source where available. Where evidence is incomplete, record the assumption, consequence, responsible owner and next validation action.
What must be handed over, monitored or reviewed after the immediate work is complete?
Answer with a fact or cited source where available. Where evidence is incomplete, record the assumption, consequence, responsible owner and next validation action.
Authoritative references and use notes
The sources below were selected as institutional or primary guidance for the broader practice. They support the handbook method; they do not imply that every statement or clause in a source applies to every project. Confirm the current edition, jurisdiction, contract and application before treating any requirement as mandatory.
- SOLIDWORKS Design Help — Dassault Systèmes SOLIDWORKS. Used for feature-based CAD, sketches, structures and manufacturing outputs. Accessed 2026-08-13.
- NASA Systems Engineering Handbook — NASA. Used for requirements, design, verification, validation and technical management. Accessed 2026-08-13.