Passage: This offered a common system for multiple tasks. This permitted the use of a centralized data storage, improving the maintenance of data. From a technical point of view, therefore, a database was necessary.In 1976, SAP GmbH Systeme, Anwendungen und Produkte in der Datenverarbeitung ("Systems, Applications, and Products in Data Processing") is founded as a sales and support subsidiary. Five years later, the private partnership is dissolved and its rights are passed on to SAP GmbH.The headquarters moved the following year to Walldorf, Germany. Three years later, in 1979, SAP launched SAP R/2, expanding the capabilities of the system to other areas, such as material management and production planning. In 1981, SAP brought a re-designed product to market. However, SAP R/2 did not improve until the period between 1985 and 1990. SAP released the new SAP R/3 in 1992. SAP developed and released several versions of R/3 through 1995. By the mid-1990s, SAP followed the trend from mainframe computing to client/server architectures. The development of SAP's internet strategy with mySAP.com redesigned the concept of business processes (integration via Internet). As a result, R/3 was replaced with the introduction of SAP ERP Central Component (ECC) 5.0 in 2004. Architectural changes were also made to support an enterprise service architecture to transition customers to a services-oriented architecture. The latest version, SAP ERP 6.0, was released in 2006. SAP ERP 6.0 has since then been updated through SAP enhancement packs, the most recent: SAP enhancement package 8 for SAP ERP 6.0 in 2016.

Question: In what year did SAP buy into the market?
1981