Progress Software Corporation, formerly Data Language Corporation, is an American software company that sells business application infrastructure software. Its best known product is the [Advanced Business Language|OpenEdge ABL] (formerly known as Progress 4GL), which was developed in the early 1980s. Progress's headquarters are in Bedford. The company is composed of the following operating units: Responsive Process Management (RPM), Responsive Business Integration (RBI), Responsive Business Applications (RBA), DataDirect. FuseSource is run as an independent subsidiary.  Wikipedia