Architectural Breakdown

Enterprise Multi-Tier Architecture Solution

1. The Client Challenge

A national retail and supply-chain group operating 120 warehouse branches struggled with slow legacy desktop software and fragmented web reporting. Data synchronization between local cash registers and headquarters took hours, causing inventory inaccuracies and lost revenue.

2. The DRG NEXORA Engineering Solution

DRG NEXORA architected a unified three-tier enterprise ecosystem:

• Backend Services: ASP.NET Core RESTful Web APIs using C#, MediatR (CQRS), and Entity Framework Core for ultra-fast transactions.
• Web Portal: Modern Angular Single Page Application with TypeScript, HTML5, and CSS3 providing executive dashboards and inventory management.
• Standalone Desktop POS: C# WPF application with offline-first SQLite caching, barcode scanner COM integration, and thermal receipt printing.
• Database & Replication: Microsoft SQL Server Enterprise with AlwaysOn Availability Groups and automated T-SQL sync jobs.

3. Measurable Business Results