Description: The ‘Transformation Layer’ is a crucial stage in the ETL (Extract, Transform, Load) process that is responsible for modifying and enriching the data extracted from various sources before being stored in a target system. During this phase, data is cleaned, normalized, and transformed to meet specific requirements for analysis and presentation. This may include format conversion, duplicate removal, application of business rules, and integration of data from different sources. The Transformation Layer allows data to be more useful and meaningful, thus facilitating informed decision-making. In the context of Data Mesh, this layer may also involve data transformation in a decentralized approach, where domain teams are responsible for the quality and preparation of the data they generate. The importance of this layer lies in its ability to ensure that data is consistent, accurate, and relevant, which is fundamental for any effective data analysis strategy.
