Blog
Notes on data quality, KVKK compliance and banking engineering.
How to Validate a Turkish ID Number (TCKN) in Your Database
The TCKN checksum algorithm explained step by step, with a tested Python implementation and the limits of format validation for data quality and KVKK work.
· 5 min read · Read more
Validating Turkish IBANs with the Mod-97 Check
How the Turkish IBAN is structured, how the ISO 7064 mod-97 check works, and a tested Python implementation for finding bad account numbers in your data.
· 5 min read · Read more
BCBS 239 and Data Quality: What the Principles Ask of Your Data
A practical walkthrough of the BCBS 239 risk data aggregation principles, how accuracy, completeness and timeliness translate into measurable data quality checks, and where tools help.
· 6 min read · Read more