F. Heinsius enhanced the amsterdam-schema repository by developing two new database schema features focused on data modeling for operational analytics. He added a fractie_volgnummer attribute to enable precise sequencing within data fractions, supporting more granular ordering and analysis. Additionally, he designed and implemented a new table for storing fill speed data of household waste clusters, facilitating improved monitoring and capacity planning. All changes were made using SQL and JSON, with careful attention to schema management and forward compatibility. Heinsius maintained clear commit traceability throughout, ensuring that each feature was well-documented and integrated smoothly with existing data consumers.