Editorial brief — draft. State that camera count starts with objectives and scene requirements, not equal spacing around a perimeter.
Required method
- Mark assets, entries, approach paths, transaction points, choke points, and excluded/private areas.
- Assign an observation objective to each scene and record day/night conditions.
- Choose preliminary mounting zones, direction, height, lens/field assumptions, and overlap.
- Check obstructions, backlight, reflections, weather, tampering, service access, cable route, and network/power.
- Label every camera and connect it to a schedule and coverage note.
Original evidence
Create an annotated floor plan with purpose-coded camera positions, rejected alternatives, coverage cones, and a matching device schedule.
Review
Avoid universal distance claims; explain that lens, sensor, resolution, mounting, lighting, compression, and identification criteria affect performance.