Power BI architecture : <p>I need your help please .I'm working with Power BI but I haven't undestand how it work exactly and what it is,is power BI just a tool of visualisation or it is a whole plateform BI which contain his ETL,Datawarhouse,Olap engine ?can someone explain to me this point and give me an the equivalence of ETL,Datwaehouse ,olap in Power BI and tell me wehere the Data is stored inside it.Thanks</p>
