Case Study: Simplifying a Legacy Integration Landscape

Initial Situation

A retail enterprise operated over 120 point-to-point interfaces connecting ERP, webshop, warehouse, and marketplaces. Documentation was only fragmentary, with critical knowledge concentrated among a few individuals.

Challenge

Every change triggered cascading errors elsewhere, and root-cause analysis for incidents regularly took longer than the actual fix.

What OXORY Did

We established a comprehensive interface inventory, designed a target integration architecture, and defined an API-led connectivity pattern — including a well-founded middleware recommendation and governance framework for new interfaces.

Result

• **40%** fewer interfaces to maintain through consolidation and decommissioning
• Incident resolution time **halved**, as error paths are now fully traceable
• New integrations follow a standardized reference pattern instead of ad-hoc bespoke solutions

Applicable to

Landscapes that have grown organically around isolated projects over years, where every modification is perceived as a major risk.