Articles
Articles on data engineering, analytics, and building AI tools.
·13 min read
Nobody Could Tell Us Why the Number Was Wrong
Building an AI investigator for disputed dashboard numbers: what worked, what failed, and why clean facts and simple plumbing matter more than the model.
data-engineering
ai
analytics
·30 min read
The Timestamp Trap in Power BI Incremental Refresh: Why Correct Configuration Can Still Produce Stale Data
Custom pollingExpression is documented. The real problem is choosing a change signal that represents business truth, not ETL noise.
power-bi
fabric
incremental-refresh
data-engineering