“…Semantic-based data warehouses are developed because they see some weaknesses in traditional data warehouse such as stages to generate OLAP reports that must go through several processes such as landing zone, staging area, integrated store, and analytic layer, Whereas it's previously already through the ETL process (extract, transform, load) [1]. Semantic-based data warehouses can handle different data sources, both internal and external sources, where external data handling has many challenges such as characteristics, structural, and heterogeneous syntax [3][4] [5] [6].…”