IGB-DOC-001

Documentation Architecture

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Document ID : IGB-DOC-001

Title : Documentation Architecture

Version : v1.1

Status : Active

Owner : IGB Engineering

Last Update : 2026-08

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Revision History

Version	Date	Description
v1.0	2026-08	Initial Release
v1.1	2026-08	Added Governance Policy, Directory README Standard, Documentation Lifecycle and Archive Policy

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1. Purpose

This document defines the official documentation architecture for the IGB Engineering Platform.

Its purpose is to establish a unified documentation framework for engineering development, product lifecycle management, software, hardware, manufacturing, validation, security, and intellectual property.

This document serves as the highest-level documentation standard.

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2. Scope

This specification applies to every repository belonging to the IGB Engineering Platform.

Including but not limited to

• Hardware
• Mechanical Design
• PCB Design
• Firmware
• Software
• AI Models
• Manufacturing
• Validation
• Documentation

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3. Documentation Principles

Documentation shall follow the following principles.

• Single Source of Truth
• Engineering First
• Version Controlled
• Git Managed
• Human Readable
• Machine Searchable
• Long-term Maintainable

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4. Documentation Directory Structure

The official documentation hierarchy shall be:

docs/

architecture/
engineering/
requirements/
communication/
security/
validation/
manufacturing/
software/
bom/
releases/
intellectual-property/
products/
specifications/
patents/
standards/
templates/
archive/

Each first-level directory shall contain a README.md.

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5. Directory Definitions

architecture

System architecture

Architecture Constitution

Architecture Decision Records

Interface architecture

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engineering

Engineering Design

Engineering Design Freeze

Engineering Change Notice

Engineering Reports

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requirements

System Requirements

Product Requirements

Customer Requirements

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communication

Communication Protocol

Networking

Mesh

Satellite

Radio

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security

Security Design

Threat Model

Cryptography

Authentication

Secure Boot

TPM

HSM

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validation

EVT

DVT

PVT

Reliability

Verification

Certification

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manufacturing

Manufacturing

Assembly

Production

DFM

DFA

SOP

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software

Software

Firmware

Operating System

Bootloader

Drivers

Application

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bom

Bill of Materials

AVL

Approved Components

Lifecycle

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releases

Release Notes

Software Releases

Hardware Releases

Engineering Releases

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intellectual-property

Patents

Trademark

Copyright

Trade Secret

Licensing

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products

Product Family

Product Definition

SKU

Roadmap

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specifications

Electrical

Mechanical

Thermal

Environmental

Performance

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patents

Patent Blueprints

Patent Drafts

Patent Research

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standards

Corporate Documentation Standards

Naming Standards

Drawing Standards

Version Standards

Git Standards

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templates

Engineering Templates

Document Templates

Drawing Templates

Meeting Templates

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archive

Historical Documents

Deprecated Documents

Frozen Versions

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6. Document Prefix Standard

Prefix	Description
IGB-DOC	Documentation
IGB-ARCH	Architecture Constitution
IGB-ADR	Architecture Decision Record
IGB-ECN	Engineering Change Notice
IGB-ICD	Interface Control Document
IGB-EDF	Engineering Design Freeze
IGB-REQ	Requirement
IGB-SEC	Security
IGB-COM	Communication
IGB-VAL	Validation
IGB-MFG	Manufacturing
IGB-SW	Software
IGB-BOM	Bill of Materials
IGB-IP	Intellectual Property
IGB-REL	Release

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7. Directory README Standard

Every first-level directory shall include a README.md containing

• Purpose
• Scope
• Document Prefix
• Typical Contents
• Related Documents
• Owner
• Status

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8. Version Management

Official documents shall not include version numbers in filenames.

Example

Correct

IGB-DOC-001_Documentation_Architecture.md

Incorrect

IGB-DOC-001_Documentation_Architecture_v1.1.md

Document versions shall be maintained inside the document.

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9. Archive Policy

Historical versions shall be stored in

docs/archive/

Git remains the authoritative version history.

Archived files are read-only.

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10. Documentation Lifecycle

Draft

↓

Review

↓

Approved

↓

Active

↓

Engineering Freeze

↓

Released

↓

Archived

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11. Governance Policy

No first-level documentation directory may be added, removed, or renamed without updating this document.

Every new directory shall

• include README.md
• define document prefixes
• comply with this documentation architecture
• be reviewed through an Architecture Decision Record (IGB-ADR)

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12. Compliance

All engineering documentation shall comply with this standard.

Projects not conforming to this specification shall be considered non-compliant.

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Appendix A

Documentation Root

docs/
├── architecture/
├── engineering/
├── requirements/
├── communication/
├── security/
├── validation/
├── manufacturing/
├── software/
├── bom/
├── releases/
├── intellectual-property/
├── products/
├── specifications/
├── patents/
├── standards/
├── templates/
└── archive/

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Appendix B

This document is the root specification of the IGB Engineering Documentation System.

All future documentation standards shall inherit from this document.