IBM Cross System Product
IBM's Cross System Product (CSP) was an application generator intended to create online systems on IBM's mainframe platforms. Introduced in 1981,[1] CSP consisted of a set of source code generators that allowed developers to interactively define, test, generate, and execute application programs. CSP was composed of two products:
- Cross System Product/Application Development (CSP/AD) - development environment.
- Cross System Product/Application Execution (CSP/AE) - runtime environment.
CSP version 3 was released in 1986 with extended functions:[2]
- DB2 support in CICS/OS/VS and MVS/TSO environment
- SQL/DS support in VSE and VM/SP environment
- MVS/XA (31bit addressing) support
The 1987 SAA announcement cast doubt on IBM's commitment to CSP – it "wasn't silent on CSP; it dismembered it.".[3]
The last version of CSP, version 4.1, went out of support at the end of 2001.
In 1994 IBM released a successor product called VisualGen[4] which incorporated "the ability to develop client/server applications (particularly the addition of Graphical User Interfaces (GUIs) to applications), the ability to access data from non-IBM vendors’ data stores, and the ability to execute application in operating environments beyond the mainframe." In 1996 this product was again renamed to VisualAge Generator.[1] VisualAge Generator was withdrawn from service in 2009 and succeeded by Rational Business Developer.[5]
See also
References
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