In July 2025, delivered a focused configuration-driven integration for DEFRA/epr-data-sqldb, adding support for ObligationCalculationOrganisationSubmitterType and enabling streamlined data source onboarding for obligations calculation.

May 2025 monthly summary for DEFRA/epr-data-sqldb focused on delivering data integrity improvements and reliable PRN processing. The key deliverable this month was a targeted fix to remove duplicate entries in the PRN control file for the Prn table, ensuring accurate PRN processing and reporting. The change was implemented as a focused correction with a single commit tied to PR #289, enabling traceability and quick rollback if needed.

Month: 2025-04 — Key feature delivered: Data Model Enhancement in the DEFRA/epr-data-sqldb repository. Added two new tables (Material and PRNMaterialMapping) to the PRN_ctrl_table.csv data model, expanding support for materials and their relationships. Changes are schema-focused with minimal disruption to existing logic, preserving performance and compatibility. Commit: 0b3413c7b052a891c51c5445979141dab1dc3e35 (Update PRN_ctrl_table.csv (#235)). Major bugs fixed: No major defects reported or closed this month. Minor issues, if any, were handled outside of core scope and did not impact release quality. Overall impact and accomplishments: This foundational schema enhancement enables more robust material tracking and relational analytics downstream, reducing future integration risk and enabling faster, more accurate material-related reporting. It lays groundwork for material lifecycle insights and improved data governance without impacting current data pipelines. Technologies/skills demonstrated: SQL/schema design, CSV-based data modeling, backward-compatible schema evolution, version-controlled changes, and change management with targeted PR (#235).