A. End users
1. User manual
2. User manual
3. Instructions for use
4. Quick Start Guide
5. FAQ
6. Troubleshooting Guide
7. Safety instructions
B. Technicians & Service
1. Maintenance manual
2. Spare parts and components catalog
3. Repair instructions
4. Calibration instruction
C. Authorities & Production
1. Declaration of conformity (e.g. CE)
2. Risk assessment
3. Test and sample report
4. Certificates (safety, environment, quality)
5. Work instructions
D. Developers & IT
1. API documentation
2. Software Developer Guide
3. System diagram / architecture
4. Release Notes / Changelogs
5. Configuration files
E. Supplementary documentation
1. Data sheets
2. Bill of Materials (BOM)
3. CAD drawings and 3D models
4. Flowcharts and electrical diagrams
5. SOPs (Standard Operating Procedures)