Wikipedia
SAPgui
SAPGUI is the GUI client in SAP R/3's 3-tier architecture of database, application server and client. It is software that runs on a Microsoft Windows, Apple Macintosh or Unix desktop, and allows a user to access SAP functionality in SAP applications such as SAP ERP and SAP Business Information Warehouse (now called SAP Business Intelligence). It is the platform used for remote access to the SAP central server in a company network.