System Security Plan (SSP)
OSCAL Model: System Security Plan
The System Security Plan (SSP) model documents the system’s security posture, including the system’s authorization boundary, architecture, data flows, and detailed descriptions of how each control is implemented.
About the Summit System
Summit is a fictitious cloud-based information system operated by Oscalate Systems. It is hosted in AWS and provides a public-facing web application consisting of a static front end with an API backend that serves public customers.
Key characteristics:
- Cloud Provider: Amazon Web Services (AWS)
- Architecture: Static front end + API backend
- Customer Authentication: Auth0
- Privileged Access: Microsoft Entra ID
- Audience: Public customers of Oscalate Systems
View the SSP
View the Summit SSP interactively using the OSCAL Viewer:
View Summit SSP in OSCAL Viewer
System Diagrams
Technical Architecture

Authorization Boundary

What Belongs Here
- OSCAL SSP files (JSON)
- System characteristics and authorization boundary definitions
- Control implementation descriptions
Key Concepts
- System Characteristics: Description of the system including boundary, status, and information types
- System Implementation: Inventory of components, users, and services
- Control Implementation: Detailed narratives for each applicable control
- Import Profile: Reference to the profile (baseline) that defines applicable controls
- Responsible Roles: Parties responsible for control implementation
OSCAL Reference