I need an article about data integrity in projects

[PremiumCodeX]

So, I need an article that explains the issue of data integrity in projects. When writing data integrity, I want to focus on how you should avoid having to submit the same data multiple times without checking based on human resources.

E.g.: when you have two different DBs and you want to create a new record in both DBs and you should write a script that creates the new record in each DB instead of manually creating the record in one of the DBs then manually copying the same into the other.