Differentiate between Top-Down Design Approach and Bottom-Up Design Approach

 Below is the difference between them

Top-Down Design Approach	Bottom-Up Design Approach
Breaks the vast problem into smaller sub problems.	Solves the essential low-level problem and integrates them into a higher one.
Inherently architected- not a union of several data marts.	Inherently incremental; can schedule essential data marts first.
Single, central storage of information about the content.	Departmental information stored.
Centralized rules and control.	Departmental rules and control.
It includes redundant information.	Redundancy can be removed.
It may see quick results if implemented with repetitions.	Less risk of failure, favorable return on investment, and proof of techniques.

Read here: Top- down design approach

https://bageshkumarbagi-msbi.blogspot.com/2022/05/inmons-top-down-approach-of-data-ware.html

Read here: Bottom - Up design approach

https://bageshkumarbagi-msbi.blogspot.com/2022/05/kimballs-bottom-up-approach.html