The MMU Milk Billcoin platform offers numerous benefits for various stakeholders in the dairy supply chain:
| Category | Requirement | |----------|-------------| | | Payment validation latency ≤ 3 seconds 95 % of the time under load of 200 concurrent POS terminals. | | Scalability | Architecture must support up to 5 k concurrent BillCoin payments (future expansion to other campus stores). | | Reliability | 99.9 % uptime for the Payment Validation Service (SLA). | | Security | - End‑to‑end encryption (TLS 1.3). - JWT access tokens with 15‑minute expiry. - Role‑based access control (RBAC) for admin functions. - Pen‑testing before production. | | Maintainability | Code written in Node.js 20 (backend) & React Native (POS app) with unit test coverage ≥ 80 %. | | Observability | Centralised logging (ELK stack), Prometheus metrics ( payment_success_total , validation_latency_seconds ), Grafana dashboards, alerting on error rate > 2 %. | | Compliance | GDPR‑compliant data handling; PCI‑DSS not needed (no card data). | | Usability | POS UI must be usable with one hand; QR code must be scannable from a distance of ≤ 30 cm. | | Internationalisation | UI strings available in English and Bahasa Malaysia. | mmu milk billcoin
v2.3 (Q3 2026)
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