Plain-English definition
What ETL (Extract, Transform, Load) means.
ETL stands for Extract, Transform, Load. Extract means pulling raw data from your business tools. Transform means cleaning, filtering, and restructuring that data so it makes sense together. Load means putting the cleaned data into a warehouse or reporting system. Tools like Fivetran handle the extract and load steps automatically, while the transform step is where business logic gets applied.
Why operators care
Where it shows up in the business.
Raw data from your tools is messy and inconsistent. ETL is how you turn scattered, unreliable information into clean data your team can actually trust for reporting and decision-making.