ETL Testing Training in Coimbatore

Roles and Responsibilities of an ETL Testing

ETL tester’s Roles

An ETL tester is basically responsible in validating the data sources, in the extraction of data from sources, applying the transformation logic, and loading the data in the target tables.
The main responsibilities of an ETL tester are stated below.Verify the Tables in the Source System

• In Count check
• Reconcile records with the source data
• In Data type check
• Ensure no spam data loaded
• In removing duplicate data
• To check all the keys are in place

Testing the ETL Tools

• Testing the ETL tool and its functions
• Testing the ETL Data Warehouse system
• Create, design, and execute the test plans and test cases.
• Test the flat file data transfers.
• Determines data storage needs.
• Uses different data warehousing concepts to build a data warehouse for internal departments of the organization.
• Creates and enhances data solutions enabling seamless delivery of data and is responsible for collecting, parsing, managing and analyzing large sets of data.
• Leads the design of the logical data model and implements the physical database structure and constructs and implements operational data stores and data marts.
• Designs develop, automates, and support complex applications to extract, transform, and load data.
• Ensures data quality.
• Develops logical and physical data flow models for ETL applications.
• Translates data access, transformation, and movement requirements into functional requirements and mapping designs.

The responsibilities and duties of an ETL developer

• In terms of a BI project, an ETL developer is one of the major engineering roles.
• While the main responsibility is to take charge of the Extract, Transform, Load stage, an ETL developer performs tasks connected with data analytics, testing, and system architecture. 
• Coordinate with ETL team to implement all ETL procedures for all new projects and maintain effective awareness of all production activities according to required standards and provide support to all existing applications.
• Collaborate with Metadata Manager and perform tests and provide update to all ETL activities within schedule and provide support to all large data volumes and assist in data processing.Documents all technical and system specifications documents for all ETL processes and perform unit tests on all processes and prepare required programs and scripts.
• Analyze and interpret all complex data on all target systems and analyze and provide resolutions to all data issues and coordinate with data analyst to validate all requirements, perform interviews with all users and developers.
• Perform tests and validate all data flows and prepare all ETL processes according to business requirements and incorporate all business requirements into all design specifications.
• Develop all data warehouse models and prepare reports for all meta data integration into systems and draft all ETL scripts and prepare required reports for all end users.
• Design and implement all publication activities such as dashboards and maintain required system documentation according to IT applications and SDLX procedures and provide support to all activities and provide resolution.
• Collaborate with all developers and business users to gather required data and execute all ETL programs and scripts on systems and implement all data warehouse activities and
• prepare reports for same.
  Perform root cause analysis on all processes and resolve all production issues and validate all data and perform routine tests on databases and provide support to all ETL applications.
• Develop and perform tests on all ETL codes for system data and analyze all data and design all data mapping techniques for all data models in systems.
  Provide support to all ETL schedule and maintain compliance to same and develop and maintain various standards to perform ETL codes and maintain an effective project life cycle on all ETL processes.
• Document all test procedures for systems and processes and coordinate with business analysts and users to resolve all requirement issues and maintain quality for same.
• Monitor all business requirements and validate all designs and schedule all ETL processes and prepare documents for all data flow diagrams.