Let's talk about three important areas of SIEM deployments: functionality, scalability, and flexibility.
What does a SIEM do? Wikipedia  suggests: Data aggregation; Correlation; Alerting; Dashboards; Retention, and; Forensic Analysis - a good list of foundational features, but these are taken-for-granted in a modern SIEM. What else does a SIEM do for you,? What makes your SIEM a winner in your environment?
FortiSIEM brings a raft of functionality that provides a winning solution for modern enterprise and service provider environments:
Combined NOC&SOC Analytics
Performance and availability monitoring via active device discovery
Greater security vantage
Greater ease of use
Greater functionality & flexibility
Asset list of discovered devices, plus device monitoring
Visibility of client activity. AI driven anomaly detection.
Mitre ATT&CK(r) Framework
ATT&CK framework integration down to the technique level
Flexible multi-tier dashboards
Customizable, graphical, widget based dashboards
Integrated case management
Built in case management, plus integration with external ticket systems
Full multi-tenancy capabilities
End to end multi-tenancy features for service provider deployments
How big will your SIEM deployment be on day 1? How about the day after? A year later? Sizing a SIEM deployment can be tricky, but is a critical part of deploying a solution that will deliver the log ingestion and query performance that you need.
FortiSIEM's Rapid Scale Architecture utilizes a scale out architecture and shared storage to scale from a small single node deployment up to a large multi-node cluster. The architecture is easy to understand and easy to scale; it consists of just three node types: supervisor, worker and collector. Need to scale your FortiSIEM? Add more workers and collectors.
FortiSIEM's broad feature set and scalable architecture deliver a flexible, winning solution for our customers:
Deploy FortiSIEM in a small enterprise that needs an easy to use solution that can deliver real added value to IT departments
Deploy FortiSIEM in a large enterprise environment that needs a scalable and effective but easy to use SIEM solution that provides: more functionality. greater visibility, and reduced MTTR
Deploy FortiSIEM in a MSP or MSSP environment that needs a scalable, multi-tenant capable platform that can be easily and efficiently used to deliver hosted or managed SIEM services
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.