# Deployment summary A description of the deployment. For example: + This account is for a Line-of-Business (LoB) application deployment (as opposed to a product application deployment). + The deployment involves an auto-scaled ARP (authenticated reverse proxy) within the account’s public/DMZ subnet. + Web and application servers will be deployed within the account's private subnet. + An Amazon RDS (Amazon Relational Database Service) instance will also be deployed within the account’s private subnet. + The servers (ARP, web, application, database, load balancer, and so on) are separated into distinct security groups. + The account requires an HA (high availability) design spread across Availability Zones (AZs), that is, *Multi-AZ*.