Länsi-Uusimaa Wellbeing Services County (LUVN), a Finnish wellbeing services county · 2023 →
From data production to Data as Software
The county skipped conventional data warehousing and went straight to a Data Lake and Lakehouse architecture. Over two years its data production moved to a Data as Software model: SQL work became PySpark, hand-validated pipelines became unit-tested transformation functions, and data contracts now travel with the code.
After the first release, new functionality reached production every week. The way of working was written down and can be repeated elsewhere.
Read the full case“Moving to a Data as Software model has fundamentally transformed how we approach data production — we want to understand the data and produce knowledge. The past two years of close collaboration have allowed us to treat data as a core product — improving both the speed and reliability of our data pipelines and data products. For a wellbeing services county, this means more accurate, data-driven insights that ultimately support better decision-making and better care for our citizens.”