System Architecture · TL;DR | Architecture

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System Architecture · TL;DR

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Mid-level7 min read

Rapid overview

Modular Monolith: Single deployable with strong internal boundaries.
Microservices: Independent services with separate deploys and data stores.
Event-Driven Architecture: Services communicate via events and queues.
API Gateway / BFF: Single entry point for clients, routing to backend services.
Multi-Tenant SaaS: Shared infrastructure with tenant isolation at data layer.
Micro-kernel (Plugin): Small core with pluggable extensions for client-specific behavior.
Layered / N-Tier: Classic presentation/business/data tiers, often deployed together.