SAP BW, also known as SAP Business Warehouse, is a data warehousing and business intelligence platform developed by SAP SE. It is designed to integrate data from various sources and transform it into useful information for business decision-making. In this SAP BW online training paragraph, we will cover the fundamentals of the platform, its architecture, data modeling, reporting, and more.

Firstly, let's start with the SAP BW architecture. SAP BW consists of different components, including the Data Warehousing Workbench, Business Explorer (BEx), InfoObjects, InfoProviders, DataSources, and more. The Data Warehousing Workbench is the central hub of SAP BW, where data modeling, data loading, and other data warehousing tasks are performed. BEx is the front-end tool for reporting and analysis in SAP BW. It provides a variety of reporting options, including queries, web templates, and more.