Q: A data analyst uses a changelog while cleaning data. What process does a changelog support?
or
Q: When cleansing data, a data analyst consults a changelog. Which procedures is a changelog supporting?
- Illumination
- Examination
- Disclosure
- Documentation
Explanation: During data cleansing, the process of version control might benefit from the use of a changelog. It assists in documenting and maintaining a record of the historical sequence of changes that have been made to the dataset. This history of the changes is very helpful for understanding how the data have developed over time, retracing their steps to determine which alterations were made, and ensuring that the data cleaning procedure is both transparent and reproducible. The changelog is helpful in versioning, which makes it simpler to monitor and cooperate on work related to data cleansing. This is particularly useful in projects that are collaborative or long-term in nature.
