About This Architecture

Core token lifecycle and transaction validation sequence diagram illustrating two-phase processing: Phase 1 captures token storage in the Frontend APP via PI Microservice with Audit Log tracking, while Phase 2 routes transactions through FEP, RFT, PI authentication, and NVBK core accounting. Data flows synchronously between Frontend APP, PI Microservice, Audit Log, FEP, RFT, and NVBK components, with internal processing steps and async responses clearly marked. This architecture demonstrates secure token management and multi-stage transaction validation essential for payment systems requiring compliance and auditability. Fork this diagram on Diagrams.so to customize component names, add additional validation stages, or adapt the sequence for your payment processing pipeline. The two-scenario approach provides a reusable template for systems separating token provisioning from transaction execution.

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How should token lifecycle and transaction validation be sequenced across microservices in a payment system?

This sequence diagram separates token provisioning (Phase 1: Frontend APP stores token via PI Microservice with Audit Log) from transaction execution (Phase 2: FEP routes to RFT, PI authenticates, NVBK processes accounting). The two-phase approach ensures tokens are securely managed before transaction routing, with synchronous calls between services and internal processing steps clearly marked for