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A properly designed ETL system extracts data from source systems and enforces data type and data validity standards and ensures it conforms structurally to the requirements of the output. Some ETL systems can also deliver data in a presentation-ready format so that application developers can build applications and end users can make decisions. [1]
Common job titles for data custodians are database administrator (DBA), data modeler,ETL developer and data engineer. Data custodian responsibilities A data custodian ...
Typically, users hand over the data transformation task to developers who have the necessary coding or technical skills to define the transformations and execute them on the data. [ 8 ] This process leaves the bulk of the work of defining the required transformations to the developer, which often in turn do not have the same domain knowledge as ...
Bob Lambert describes the necessary skills of a data architect as follows: [4] Foundation in systems development: the data architect should understand the system development life cycle; software project management approaches; and requirements, design, and test techniques. The data architect is asked to conceptualize and influence application ...
SSIS features a programmable object model that allows developers to write their own hosts for package execution. Such a host can respond to events, start and stop packages, and so on. The object model also allows developers to create, store, and load packages, as well as create, destroy, and modify any of the contained objects.
Apache NiFi is a software project from the Apache Software Foundation designed to automate the flow of data between software systems.Leveraging the concept of extract, transform, load (ETL), it is based on the "NiagaraFiles" software previously developed by the US National Security Agency (NSA), which is also the source of a part of its present name – NiFi.