Question

Staging area comes under which layer?

Answer 1

A staging area, or landing zone, is an intermediate storage area used for data processing during the extract, transform and load (ETL) process. The data staging area sits between the data source(s) and the data target(s), which are often data warehouses, data marts, or other data repositories.

Answer 2

The staging comes under ETL process which is part of transformation and cleansing process.

There are 4 components of datawarehoue namely
1. Data Capture
2. Transformation & Cleansing
3. Aggregation & Analysis
4. Presentation

Staging is part of ETL process which is part of transformation and clensing