Unified Digital Wallet Architecture for Cross-System Fund Conversion
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Solution Overview
Problem
Conventional digital wallets face scalability issues across multiple vertical computer systems due to internalized coupling constraints, are vulnerable to system crashes and data corruption, lack seamless fund conversion capabilities, and suffer from resource contention and data model integration challenges in distributed systems.
Innovation Solution
A unified wallet manager operates as a standalone service with its own storage, process space, and security layer, utilizing an immutable queue system for transactions and a rules engine for seamless conversions across different gaming systems, ensuring fault-tolerant and scalable operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional digital wallet is designed with internalized coupling constraints, then the wallet can maintain data integrity within a single system, but the wallet cannot scale across multiple vertical computer systems
Solution Approach 1:
The patent segments the digital wallet into independent microservices (wallet service, ledger service, funding service, vault service) that can operate autonomously across different vertical systems. Each service has its own process space and can be independently deployed, allowing the wallet to scale across multiple systems without the constraints of monolithic internalized coupling.
Solution Approach 2:
The patent introduces an intermediary event-driven architecture with message queues and event streams that mediate between different vertical systems. This intermediary layer enables communication and data exchange between systems without direct coupling, allowing the wallet to scale across multiple vertical computer systems while maintaining data integrity.
2Productivity
If a conventional digital wallet operates in a distributed system, then the wallet can access resources across multiple systems, but the wallet experiences resource contention requiring additional overhead
Solution Approach 1:
The patent implements feedback mechanisms through event-driven architecture where each service publishes events and subscribes to relevant events from other services. This feedback loop enables coordinated access to distributed resources without contention, as services react to events rather than competing for resource access, eliminating the need for additional overhead for data integrity.
Solution Approach 2:
The patent enables each microservice to be self-sufficient with its own storage, process space, and security layer. Services independently manage their own state and transactions without requiring locks or coordination overhead, allowing productive access to distributed resources while maintaining reliability through autonomous operation.
3Adaptability or versatility
If a conventional digital wallet uses a specific data model, then the wallet can efficiently store and retrieve data, but the wallet cannot integrate seamlessly with systems using different data models
Solution Approach 1:
The patent creates a universal event-driven interface that can represent multiple data models through common event schemas. The wallet service can publish and consume events in a standardized format that translates between different vertical systems' data models, enabling seamless integration while maintaining efficient data access through the universal event stream interface.
4Adaptability or versatility
If a conventional digital wallet is designed for seamless fund conversion, then the wallet can convert between different fund types, but the wallet requires complex conversion logic increasing system complexity
Solution Approach 1:
The patent introduces a funding service as an intermediary that handles all fund conversion logic. This service receives conversion requests, applies conversion rules, and publishes events that trigger updates in the wallet and vault services. By centralizing conversion logic in a dedicated intermediary service, the system achieves seamless fund conversion without distributing complex conversion logic across multiple services.
Data Source
AI summary
A unified wallet manager (UWM) virtualized as a single virtual service in which all transactions relative to the UWM are treated as immutable facts permanently stored in append-only queues or ledgers from the time of their creation. A rules engine reads conversion requests in request calls to the service and determines which rule or rules, including responsible gaming rules, to apply to control or convert funds from one ledger to another, in the same or different vertically scaled gaming systems. The UWM is a peer of other vertical gaming systems, and the gaming systems access the UWM via an API server and data egresses from the UWM through an ETL process from a database cluster. The ledger stores funds of many different types, including real money, points, play money, and others. Third parties can integrate with the UWM through an integration hub connected to the UWM.