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AI Starts Here: Reengineering Retail's Data Core with Google BigQuery
Industry
Retail
Challenge
Due to ending vendor support, a complex system migration had to be completed quickly while managing massive data volumes and undocumented processes.
Results
By reverse engineering legacy systems with accelerators, we modernized ETL processes and automated testing, completing the complex migration 50% faster.
Technologies That Powered the Transformation
rSTAR Accelerators for Data Migration and Modernization, Google Cloud Platform, SAP Business Objects, MicroStrategy, BigQuery
Streamlined 90% of Schema, ETL, Data Migration Tasks
rSTAR Accelerators streamlined 90% of the schema, ETL, and data migration tasks, reducing costs and business disruptions.
Overview
Imagine a thriving national retailer with its business running on a 25 year old Sailfish (DB2) data warehouse. But the clock is ticking: vendor support would soon vanish, leaving the company vulnerable to data blind spots and inefficiencies. The retailer needed to migrate human resources, supply chain, finance, tax, and other data into a cutting edge cloud platform. However, years of system modifications and staff turnover meant they didn't have reliable data maps or documentation.
rSTAR's experts unraveled old tables, views, scripts, stored procedures, and complex SQL, reconstructing everything for seamless integration with Google BigQuery. The result: A powerful, scalable data backbone built to handle enormous data volumes, turbocharge analytics, and enable real time reporting. This modernized system solves today's business needs and ensures the retailer is AI ready.
Business Problem & Stakes
Vendor Support Ends for Legacy System: Vendor support for the system was ending and migration delays could lead to unexpected downtime and costly vulnerabilities.
Lost Data Maps and Knowledge Gaps: Years of system changes and staff turnover left the company without reliable data maps or documentation.
Massive Transaction Volumes: The company managed two major retail chains and had to migrate large volumes of daily data such as SKUs, inventory, and dynamic pricing at once.
Strict Time and Operational Pressures: The migration required a rapid, error free transition to ensure uninterrupted business operations and the preservation of critical insights.
rSTAR Solution
Reverse Engineered Legacy Data Pipelines: rSTAR used migration Accelerators to reverse engineer the retailer's ETL system and mapped more than 4,600 tables, 1,800 views, 900 scripts, and 250 XML files.
Automated Testing and Seamless Validation: All assets migrated to BigQuery, with automated testing ensuring smooth business operations.
Modernized ETL Processes: Legacy bash scripts and stored procedure driven ETL pipelines were adapted for cloud compatibility, enabling seamless integration of both historical and real time data.
50% Faster Migration: The migration was completed in half the time estimated by other vendors.
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