SaaS
SaaS Architecture Guide
A practical architecture guide for SaaS MVPs with tenant modeling, onboarding, billing, analytics, and admin workflows.
Planning checklist
- Model tenants, users, roles, and permissions first.
- Design onboarding around the first value moment.
- Add billing only when product scope is clear.
- Track product events from the first release.
Tenant model before screens
SaaS products fail when tenant boundaries are added late. Decide whether accounts, workspaces, teams, projects, or organizations own the core records. That decision affects permissions, billing, reporting, and support tooling.
The first version should keep the model simple but explicit.
Core platform modules
- Authentication and account recovery
- Workspace or organization management
- Role-aware dashboards
- Product analytics and audit events
- Admin support tools
- Billing and subscription state
Not every MVP needs every module on day one, but each should be planned so the architecture can grow without a rewrite.
Operational visibility
A SaaS MVP needs more than customer-facing screens. Add basic admin views, event logs, error visibility, onboarding metrics, and support notes. These workflows help the team learn from real usage after launch.
SaaS
Architecture
MVP
Billing