Architecture (State 001 Baseline)

Baseline pre-containerized architecture with direct browser-to-service calls and Socket.IO trade/position subscriptions.

• Generated from: system/architecture.model.json
• Canonical flows: system/end-to-end-flows.md

Entry Points

• web-front-end-angular: http://localhost:18093
• trade-feed: http://localhost:18086

Architecture Diagram

Node Catalog

Node	Kind	Label	Notes
trader	actor	Trader Browser	Human user interacting with Angular UI.
web	frontend	Web Front End Angular	Browser-hosted UI.
account	service	Account Service	Account and account-user CRUD.
position	service	Position Service	Trades and positions query endpoints.
tradeService	service	Trade Service	Trade submission and validation.
referenceData	service	Reference Data	Ticker lookup/list.
people	service	People Service	Directory lookup and validation.
tradeFeed	messaging	Trade Feed	Socket.IO publish/subscribe bus.
tradeProcessor	service	Trade Processor	Processes new trades and updates positions.
database	database	Database	Persistent account, trade, and position state.

State Notes

• This state is intentionally pre-ingress and cross-origin.
• CORS behavior is part of baseline non-functional requirements.