Improving data quality
Although interesting and an extensive area of expertise, we are not going to focus here on all the processes that a data governance team should take care of in order to ensure data quality. There are already several books out there about data management that can help you establish reliable processes to work with your data.
We are going to suppose that the organization has already performed data asset inventories and established baselines for the data dimensions that are going to be rated. Let's suppose too that the organization has a set of data quality rules to check data against the baselines and that the data management team makes regular assessments to measure the quality of the data and the subsequent process to improve it.
Roberto Rodriguez wrote a blog post about how to deal with these issues called Ready to hunt? First, show me your data, available at https://cyberwardog.blogspot.com/2017/12/ready-to-hunt-first-show-me-your-data.html. In this...