Overview
Diagnostic centers need speed and traceability: catalog, intake, sample ID, result entry, doctor approval, delivery, and payment.
Problem statement
Results were retyped and samples were lost in busy mornings.
Requirements and constraints
Test catalog with panels, barcode or sample ID, technician queue, approval before release, PDF report, corporate credit billing.
Proposed architecture
Status-driven sample record from collection to delivery. Accounts posts when report is delivered or credit rules say so.
Database design
Tests, orders, samples, results, approvals, and invoices linked in one chain.
API design and authentication
Optional SMS or email hooks when client provides gateways.
Security
Result PDFs only to authorized roles. Public portfolio omits real patient identifiers.
Performance
Worklists filter by date and status so technicians see today’s bench.
Testing and deployment
Walkthrough: order tests, collect sample, enter result, approve, print.
Challenges and lessons
Partial panels and refunds without breaking audit trail.
Verified results
Centers run daily volume on a single traceable pipeline.