Data migration is defined as transferring data from one system or application to another. It involves extracting data from the source system, transforming it to the required format, and loading it into the target system. The process involves several steps, including planning, extraction, transformation, and loading.
The first step is planning which involves identifying the data that needs to be migrated, establishing a timeline for the migration, and selecting the appropriate tools and resources to perform the migration.
For the second step, data is extracted from the source system or storage location. Here, experts identify the data to be migrated and extract it in a format that can be easily transferred to the target system.
The third step is transformation, where data is transformed into a format that can be loaded into the target system. This step may involve converting data from one format to another, merging or splitting data sets, and performing data validation and quality checks.
The final step is loading, where the transformed data is loaded into the target system or storage location. This involves ensuring that the data is transferred securely, accurately, and efficiently.
Data migration can be a complex and time-consuming process, requiring careful planning and execution. It is critical to ensure that the migrated data is accurate, complete, and consistent with the original data. This requires implementing data validation and quality control processes to verify the integrity of the data before and after migration.
Effective data migration enables organizations to upgrade to new systems, consolidate data, and streamline their operations. It enables organizations to maximize the value of their data assets and support their business objectives.