Vendor Matrix maps the production VMS market: the landscape, deep dives on Milestone XProtect (the enterprise default), Genetec Security Center (the integrated platform), Avigilon under Motorola Solutions, the new AI-native VMS generation (Ambient, Spot AI, Eagle Eye Networks), the custom-vs-off-the-shelf decision, and a vendor-comparison reading guide. Vendor-neutral, accuracy-over-hype tone.