What is required to ensure the layers of a medallion architecture populate in the correct sequence?

To ensure that the layers of a medallion architecture populate in the correct sequence, an orchestration pipeline is crucial. This pipeline is designed to manage and schedule the execution of various processes, allowing for a streamlined flow of data through the different layers of the architecture. In medallion architecture, which often includes bronze (raw data), silver (cleaned and enriched data), and gold (aggregated and business-ready data) layers, the orchestration pipeline coordinates the dependencies and execution order between these stages. This guarantees that data is processed correctly and efficiently, with each layer receiving its inputs from the previous one, thereby maintaining data integrity and accuracy throughout the workflow.

In contrast, other options like a standalone notebook or a manual process lack the automation and efficiency needed for robust data processing. An invocation trigger may initiate specific processes but does not manage the sequence and orchestration like a dedicated pipeline does. Thus, the orchestration pipeline is essential for ensuring the proper sequencing and functionality of the medallion architecture.