Understanding Data Quality and Why Data Cleaning is Important
Data is all around us, and so subsequently, data quality is also all around us. Now, if you work in the data space, then you have definitely encountered data quality.
In the world of data analysis and business intelligence (BI), data is the foundation upon which insights and decisions are made. However, the quality of the data we work with can greatly impact the accuracy and reliability of our analyses.
In this chapter, we will explore factors that affect data quality and delve into why data cleaning is a crucial step in the data preparation process. You will learn key concepts to ensure the data you work with is clean and accurate for the analysis you’re looking to carry out. In addition to this, you will also learn best practices that you can implement within your own business.
We’ll cover the following topics in this chapter:
- What is data quality?
- Where do data quality issues come from...
