System Landscape¶

AIERP consists of product surfaces, operational services, integration layers, and deployment tooling.

flowchart LR
  POS[POS UI]
  HUB[Store Hub]
  GATEWAY[API Gateway]
  CATALOG[Catalog Service]
  STORE[Store Operations]
  SYNC[Sync Service]
  BILLING[Billing]
  NOTIFY[Notifications]
  PDF[PDF Service]
  FLAGS[Feature Flags]
  EXT[Extensions and Country Packs]

  POS --> GATEWAY
  HUB --> GATEWAY
  GATEWAY --> CATALOG
  GATEWAY --> STORE
  GATEWAY --> SYNC
  GATEWAY --> BILLING
  GATEWAY --> NOTIFY
  GATEWAY --> PDF
  GATEWAY --> FLAGS
  EXT --> GATEWAY

Logical Layers¶

1. Product surfaces¶

POS UI
Store Hub

2. Serving and coordination¶

API Gateway
projections and cache-backed reads

3. Business services¶

catalog
inventory
store operations
sync
billing
notifications

4. Platform extensions¶

plugins
country packs
SDKs

Documentation Rule¶

Every service page should answer:

what data does it own?
what data does it only project?
what events does it emit or consume?