The main use of SAP in a company is managing their separate data bases, which run their company.
SAP was primarily used for as a way to offer a single user process of accounting. SAP was basically marketed for businesses in small sector. This process of accounting offered by SAP was to integrate asset management, costs, production, operations, personnel and spread sheets for financial purpose.
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SAP HANA program was initially meant to provide its user companies the capability of working from a company wide shared data base. Later, SAP was evolved to replace all the financial spread sheets in a company. This was done with a single user accounting package. This accounting package worked within the business management system of the company.
SAP provides better accuracy of information to a company. SAP also includes a complete internet package, for use in e business platforms. SAP business applications work as a chain management system for a company.