From ETL to ELT: Modernizing pipelines for consumer identity workflows
Shashank Rudra · World Journal of Advanced Engineering Technology and Sciences · 2025
This article examines the paradigm shift from Extract, Transform, Load (ETL) to Extract, Load, Transform (ELT) architectures within consumer identity data processing workflows. As organizations increasingly prioritize unified customer views across digital touchpoints, traditional ETL approaches have revealed limitations in handling the velocity, volume, and complexity of modern data streams. The transition to ELT represents more than a reordering of steps; it reflects a fundamental reimagining of data architecture in response to cloud computing capabilities and evolving identity resolution requirements. The article explores how ELT architectures enable more flexible handling of consumer identifiers, support sophisticated journey analysis, and facilitate real-time segmentation while enhancing governance and privacy controls. Key advantages discussed include the separation of concerns between data acquisition and transformation, improved scalability through cloud-native processing, and the democratization of data access through SQL-based transformations. Implementation of best practices covering orchestration, performance optimization, data quality management, and privacy-preserving techniques provides practical guidance for organizations modernizing their consumer identity data pipelines.