Karunaratne, Nayananda, and Pulasthi Medhananda. 2026. “Revisiting the IBM Retail Data Warehouse: A Governed One-Column Architecture and Reproducible Open-Dataset Validation for Retail Analytics”. International Journal of Information Technology and Computer Science Applications 4 (1):59-69. https://doi.org/10.58776/ijitcsa.v4i1.247.