3-day first prototype; seamless Oracle Retail v11→v16 upgrade

The Challenge

A US-based duty-free retailer operating 280+ stores needed to upgrade five versions of Oracle Retail (MOM, ReSA, and SIM) from v11 to v16. The complexity of the upgrade and the need for confidence in the approach required rapid prototyping.

The Solution

elfware delivered a fixed-price data prototype in just 3 days. This prototype demonstrated the complete upgrade path using real client data, turning assumptions into evidence and building confidence for the full programme.

Our approach included:

• Rapid data mapping and transformation
• Schema evolution handling
• Validation and reconciliation
• Performance optimization

The Results

The upgrade was completed successfully with 80-90% faster development time compared to traditional methods. The early prototype de-risked the entire programme and enabled confident decision-making throughout.

"Seeing our own data flowing through the upgraded Oracle Retail environment within three days changed everything — it turned assumptions into evidence."