Introduction

SAP is the largest Enterprise Resource Planning (ERP) solution software provider.SAP's products focus on ERP, which it helped to pioneer. The company's main product is SAP R/3;the "R" stands for real time data processing and the number 3 relates to a three-tier application architecture: database, application server and client SAPgui.Other major product offerings include Advanced Planner and Optimizer (APO),Business Information Warehouse(BW),Customer Relationship Management(CRM),Supplier Relationship Management(SRM), Human Resource Management Systems(HRMS),Product Lifecycle Management(PLM), Exchange Infrastructure(XI) and Knowledge Warehouse(KW).Reportedly, there are over 91,500 SAP installations at more than 28,000 companies. SAP products are used by over 12 million people in more than 120 countries."