What Is Sap R2?
SAP R/2 is an enterprise resource-planning software application. SAP AG, a German software developer, originally released this real time data-processing software in 1979 as a follow-up to its materials management product, RM/1. A little more than a decade later in 1992, the company replaced the SAP R/2 application with the updated SAP R/3 application. SAP AG no longer supports the SAP R/2.
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Enterprise Resource Planning
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An enterprise resource planning system facilitates the transfer of information between various departments within a business organization. Additionally, ERP applications automate this real-time flow of information. Examples of departments that commonly benefit from ERP applications include human resources, accounting, supply chain management, customer service, manufacturing and management. Further, ERP applications facilitate the management of external organizational components such as public relations.
The Time-Sharing Option
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Although SAP R/2 is a real-time application, the ERP features a time-sharing option. A TSO allows several users to access the operating system at the same time. While doing so, the TSO hides the identity and presence of the other users, making it appear that only one person has access at a time. This capability allows individuals from different areas to update and transfer data simultaneously.
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Mainframe Computing
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SAP AG designed the R/2 application to work on mainframe computers. Therefore, this ERP application requires high-performance hardware geared towards complex and large-scale tasks. This orientation provides a centralized form of computing. However, as modern computers became smaller and more powerful, mainframe computing became less relevant. While SAP AG has subsequently released updated ERP applications compatible with various operating systems and platforms, the R/2 application only works with a mainframe computer.
SAP R/2 Versus R/3
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In contrast to the mainframe computing requirement of the R/2 application, SAP AG’s R/3 application functions with a three-tier, or client server architecture. This means various systems can simply connect to the database server. The SAP R/2, on the other hand, uses a two-tier architecture that allows individual users to access the database through various terminals, while the mainframe houses the central database. In this case, the mainframe functions as a server for both the database and applications.
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