Explain What are the steps to build the data warehouse

As far I know...

Gathering bussiness requiremnts
Identifying Sources
Identifying Facts
Defining Dimensions
Define Attribues
Redefine Dimensions & Attributes
Organise Attribute Hierarchy & Define Relationship
Assign Unique Identifiers
Additional convetions:Cardinality/Adding ratios


Gather requirements,
Identify Source tables,
Identify Destination tables,
Data modelling
Source to target matrix preparation,
ETL flow preparation and scheduling,
Reporting