Architecture Discovery: Paperless Banking Workflow Integration
crystal zhu
Architecture Discovery: Paperless Banking Workflow Integration
A backend workflow design case study showing how to separate booking lifecycle, bank transaction lifecycle, status ownership, and notification triggers before implementation.
This case study explores how I would approach a paperless banking workflow integration before implementation.
The workflow involves a third-party booking platform, a digital form, a bank backend system, PDF generation, and customer notifications.
The main design challenge is not the form itself. It is separating two lifecycles:
Booking Lifecycle — does the customer have a valid appointment?
Bank Transaction Lifecycle — where is this banking transaction in the internal process?
I focused on clarifying system boundaries, status ownership, MVP flow, failure cases, and when PDF or notification actions should be triggered.
This reflects the kind of backend work I enjoy most: turning messy business workflows and third-party integrations into clear, buildable system design.
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Posted Jun 8, 2026
Architecture discovery for a paperless banking workflow: booking lifecycle, transaction status, backend boundaries, PDF triggers, and notifications.
