Automotive Manufacturing Documentation

When to Activate This Skill

• "Write a work instruction for [process]"

• "Create a business process for [operation]"

• "Document manufacturing procedure"

• "Build SOP for [automotive process]"

• "Create APQP documentation"

• "Write quality inspection procedure"

• "Document assembly/machining/material handling process"

Core Document Types

1. Work Instructions (WI)

Purpose: Detailed step-by-step operator guidance Key Elements:

• Clear title and document ID

• Scope and applicability

• Required materials, tools, equipment

• Safety warnings and PPE requirements

• Numbered sequential steps with visual aids

• Quality checkpoints and acceptance criteria

• References to specifications/standards

2. Standard Operating Procedures (SOP)

Purpose: Standardized process methodology Key Elements:

• Purpose and scope

• Responsibilities and authorities

• Process flowchart

• Detailed procedure steps

• Forms and records

• Related documents

• Revision history

3. Business Process Documents

Purpose: High-level process definition and control Key Elements:

• Process ownership

• Inputs and outputs

• Key performance indicators (KPIs)

• Process flow diagram

• Interaction with other processes

• Risks and controls

• Continuous improvement tracking

Standards Compliance

IATF 16949 Requirements

• Process approach methodology

• Risk-based thinking

• Turtle diagrams for process definition

• FMEA linkage

• Control plan alignment

• Layered process audits consideration

ISO 9001 Structure

• Context of organization

• Leadership and planning

• Support and operation

• Performance evaluation

• Improvement focus

APQP/PPAP Integration

• Process flow diagrams

• PFMEA considerations

• Control plans

• Work instructions as PPAP deliverables

• Measurement system analysis references

Writing Framework

Document Structure Template

1. HEADER

   • Document Title
   • Document Number
   • Revision/Date
   • Approvals (Prepared/Reviewed/Approved)

2. PURPOSE & SCOPE

   • Why this document exists
   • What processes/operations it covers
   • What it doesn't cover

3. RESPONSIBILITIES

   • Who performs the work
   • Who supervises
   • Who approves/validates

4. SAFETY & PPE

   • Hazards and risks
   • Required personal protective equipment
   • Emergency procedures

5. MATERIALS & EQUIPMENT

   • Parts/components list
   • Tools required
   • Equipment specifications
   • Gages and measuring devices

6. PROCEDURE/STEPS

   • Sequential numbered steps
   • Action-oriented language (verb-first)
   • Visual aids (photos, diagrams)
   • Quality checks embedded

7. QUALITY REQUIREMENTS

   • Specifications and tolerances
   • Inspection frequency
   • Acceptance/rejection criteria
   • Rework procedures

8. RECORDS & DOCUMENTATION

   • What gets recorded
   • Where records stored
   • Retention requirements

9. REFERENCES

   • Related documents
   • Engineering drawings
   • Specifications
   • Standards

10. REVISION HISTORY

    • Date, revision, changes made

Process Type Guidelines

Assembly Operations

• Focus: Sequence, torque specs, orientation

• Include: Part numbers, installation direction, fastener specifications

• Visuals: Assembly diagrams, before/after photos, exploded views

• Checks: Fit, alignment, function tests

Machining Operations

• Focus: Setup, program, tooling, parameters

• Include: Machine settings, feed/speed, tool specifications, fixtures

• Visuals: Setup photos, tool paths, measurement points

• Checks: Dimensional verification, surface finish, first-piece inspection

Quality/Inspection

• Focus: What to inspect, how to measure, accept/reject criteria

• Include: Gage R&R references, sampling plans, measurement methods

• Visuals: Measurement locations, gage usage, defect examples

• Checks: Calibration verification, data recording

Material Handling

• Focus: Movement, storage, protection, traceability

• Include: Handling methods, storage conditions, labeling, FIFO

• Visuals: Packaging methods, storage layouts, label formats

• Checks: Condition verification, count accuracy, traceability

Best Practices

Writing Style

• Active voice: "Insert the bolt" not "The bolt is inserted"

• Present tense: "Check the torque" not "The torque should be checked"

• Imperative mood: Direct commands to operator

• Concise: One action per step

• Specific: Exact values, not ranges when possible

Visual Elements

• Photos of actual parts/processes (preferred)

• Diagrams for complex assemblies

• Flowcharts for decision points

• Callouts for critical features

• Color coding for emphasis (warnings in red/yellow)

Quality Integration

• Embed quality checks within process steps

• Reference control plans

• Link to FMEA high-priority items

• Include mistake-proofing (poka-yoke) features

• Document inspection frequency

Revision Control

• Clear document numbering system

• Revision history table

• Change bars for modified sections

• Effective date tracking

• Training requirements for changes

Common Mistakes to Avoid

• Assuming operator knowledge

• Missing safety information

• Vague quantities or specifications

• No visual aids for complex operations

• Incomplete tool/equipment lists

• Missing quality acceptance criteria

• No revision history

• Passive voice or unclear instructions

Quick Reference: Document Selection

Need Document Type Complexity

Operator guidance Work Instruction Low-Medium

Department procedure SOP Medium

Process definition Business Process Medium-High

Quality procedure Quality SOP Medium

Inspection method Inspection WI Low-Medium

Output Format

When creating documents, structure output as:

[DOCUMENT TITLE]

Document Number: [AUTO-XXX-####] Revision: [X] | Date: [YYYY-MM-DD] Prepared: _____ | Reviewed: _____ | Approved: _____

1. Purpose & Scope

[Content]

2. Responsibilities

[Content]

[Continue with standard sections...]

Supplementary Resources

For comprehensive methodologies and advanced topics: read ~/.claude/skills/AutomotiveManufacturing/CLAUDE.md

For document templates: ls ~/.claude/skills/AutomotiveManufacturing/templates/

Integration with Related Skills

A3CriticalThinking

When manufacturing issues arise, use A3 problem-solving methodology:

• Quality defects → Root cause analysis (5 Whys, Fishbone)

• Process failures → Structured countermeasure development

• Decision making → Apply priority hierarchy (Safety → Customer → Cost)

Load A3 skill: read ~/.claude/skills/A3CriticalThinking/SKILL.md

SupplyChain

For supplier-related documentation and requirements:

• Supplier quality requirements in work instructions

• PPAP documentation for purchased components

• Incoming inspection procedures

Load SupplyChain skill: read ~/.claude/skills/SupplyChain/SKILL.md

HoshinKanri

For strategic alignment of manufacturing objectives:

• Cascade targets to shop floor metrics

• Link work instructions to quality objectives

• Bowling chart for manufacturing KPIs

Load HoshinKanri skill: read ~/.claude/skills/HoshinKanri/SKILL.md

Key Principles

Priority Hierarchy (from A3CriticalThinking):

1. SAFETY FIRST → Never compromise for cost or delivery
2. CUSTOMER VALUE → Quality that meets/exceeds requirements
3. SHAREHOLDER VALUE → Optimize after 1 & 2 are secured

• Safety First: Always lead with safety considerations - this is non-negotiable

• Clarity Over Brevity: Be clear, even if it takes more words

• Visual Communication: A picture is worth 1000 words

• Measurable Requirements: Specific, measurable acceptance criteria

• Traceability: Link to higher-level documents and standards

• Living Documents: Build in revision and improvement processes

• Problem Solving: Use A3 methodology for issues and improvements