CSP

The architecture of CSP was centered around two main components: CSP/AD (Application Development) and CSP/AE (Application Environment). CSP/AD was the development environment where users defined application logic, data structures, and business rules. This component generated the application programs, initially in an interpretive format and later as COBOL code.

The generated code was then executed within the CSP/AE runtime environment. Communication between components was primarily through the generation and execution process. CSP/AD produced the code, and CSP/AE executed it.

CSP did not use a specific database; instead, it interacted with data sources through the mainframe's data access methods. Configuration files were used extensively to define application behavior, data structures, and system parameters. Security was handled through the underlying mainframe operating systems, such as z/OS or z/VM.

CSP relied on the security features of the mainframe environment. This included access control mechanisms and audit logging provided by the operating system. Since CSP is no longer supported, organizations should migrate applications to modern development environments.