Engineering archive · Background technical note
Why reporting defects matter
Incorrect reports can distort metrics, operational decisions and trust even when no screen appears broken.
Database-driven validation
SQL and source checks confirm that records, transformations and calculated fields follow the expected rules.
Source-to-report comparison
Comparing source data with displayed and exported values reveals filtering, aggregation and business-rule errors.
Repeatable evidence
Python automation can compare databases, files and generated outputs across releases and datasets.