The Client Option is a programming environment that enables the user to create mainframe applications that access data and applications residing on a LAN. The Client Option allows the user to treat the mainframe as if it were another node on a LAN.
The Client Option uses the following APIs:
Traditional Open Client programming environment (for new customers and Sybase-heritage customers using new applications)
Client Services Application (CSA) programming environment (only for MDI-heritage customers using their old applications)
The Client Option allows the mainframe to take on the initiating role of a client in a distributed system. The Client Option is a library of routines, programming services, and runtime services that you can use to develop client/server applications. It allows mainframe programs written in assembler, C, COBOL II, or PL/I to communicate with ASE and with Open Server-developed applications. By using the Client Option, developers can extend the capabilities of their existing mainframe transaction-orientated applications to give end users and mainframe-based applications transparent access to distributed LAN-based applications and data. Also, z/OS batch applications can become clients requesting data or services form network- and Internet-based applications.
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