Multi-Tier Architecture

Architecture

Classic three-tier deployment pattern:

• Web Tier: Load balancers in public subnets
• Application Tier: App servers in private subnets
• Database Tier: RDS/ElastiCache in isolated subnets

When to Use

This pattern is ideal when you need:

• Traditional web application hosting
• Clear separation of concerns
• Defense in depth security model
• Scalable application architecture