11-01-2007 11:47 AM
11-01-2007 11:52 AM
SAP R/2 was a mainframe based business application software suite that was very successful in the 1980s and early 1990s. It was particularly popular with large multinational European companies who required soft-real-time business applications, with multi-currency and multi-language capabilities built in
SAP R/3 is a client/server based application, utilizing a 3-tiered model. A presentation layer, or client, interfaces with the user. The application layer houses all the business-specific logic, and the database layer records and stores all the information about the system, including transactional and configuration data.
R/1 means Realtime One Tier Architecture,
R/2 means Realtime Twoer Architecture,
R/3 means Realtime Three Tier Architecture,
11-01-2007 11:52 AM
They are versions of the ERP software from SAP, R/1 and R/2 were on the mainframe, and R/3 was the first one to use client/server architechure.
http://www.sap.com/company/history.epx
Regards,
Rich Heilman
11-01-2007 11:53 AM
Hi,
R/3 is Release 3, it's a 3-Tire arch., Presentation server, Application server, Database server.
R/2 is Release 2, it's based on the mainframe, client-server arch.
Bye,
KC