Legacy data warehouses are expensive, fragile, and slow to adapt. Modern enterprises need a centralized system that consolidates data from every source into a single Enterprise Data Warehouse (EDW) — and the shift is happening now.
The Problem with Legacy Data Warehouses
Traditional data warehouses were designed for a different era. They rely on batch processing, rigid schemas, and expensive on-premise infrastructure. As your organization grows, these systems become bottlenecks — slow queries, manual ETL jobs, and data silos that prevent teams from making timely decisions.
According to Gartner, 67% of enterprises still struggle with data fragmentation across disconnected systems. The cost? An average of $1.7M per year in lost productivity and missed opportunities.
What Makes a Modern EDW Different
A modern Enterprise Data Warehouse built on cloud-native architecture solves these problems by design:
- Automated ETL/ELT pipelines — Data flows continuously from source to warehouse without manual intervention.
- Data virtualization — Query across multiple sources without physically moving data.
- Real-time synchronization — Instant conflict resolution ensures consistency across all connected systems.
- Data governance — Built-in quality rules, lineage tracking, and compliance for trusted data.
How OnWebApp Delivers EDW
OnWebApp's Data Integration module provides a complete EDW solution. We consolidate data from ERP, CRM, IoT devices, social platforms, and custom databases into one unified warehouse. Our automated ETL pipelines handle millions of records daily, while data virtualization lets you query across sources without the overhead of physical data movement.
The result? One version of truth across your entire organization. Every team works with the same, always-current data — from finance to operations to customer success.
Migration Strategy: From Legacy to EDW
Migrating from a legacy data warehouse doesn't have to be risky. Our phased approach ensures zero downtime:
- Assessment — Map your current data landscape and identify all sources.
- Parallel run — Run the new EDW alongside your legacy system for validation.
- Cutover — Switch traffic to the new system with automated rollback capability.
- Optimization — Tune queries, add indexing, and optimize pipeline performance.
Results You Can Measure
Companies that modernize their data warehouse with OnWebApp report:
- 40% reduction in data processing costs
- 10x faster query performance
- 99.9% data accuracy with automated quality checks
- Zero manual ETL maintenance
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