1.1.6 - Discuss problems that may arise as a part of data migration. Flashcards
What is data migration?
Data migration is the transfer of data between different formats, storage types, and computer systems.
What issues can arise with incompatible file formats during data migration?
Incompatible file formats can prevent data from being properly transferred or used in the new system.
How can different software versions cause problems in data migration?
Different software versions, even within the same piece of software, may have incompatible data formats.
What problems can data structure differences cause during migration?
Moving data from a flat file or an array to a linked list can cause compatibility issues and data handling problems.
How do validation rules affect data migration?
Different input validation rules can lead to some data being rejected and lost during migration.
What is an incomplete data transfer, and how does it occur?
An incomplete data transfer occurs when the transfer is interrupted (e.g., due to connectivity issues), resulting in partial data transfer and potential data loss.
What are some differences in data that can cause migration issues?
Differences in date formats (e.g., 9/11 in the US vs. 11/9 in the UK) and currency symbols ($ for US dollar vs. AUS or NZ dollar) can cause confusion. Character sets between languages can also be misinterpreted.
