
Chapter 8. Designing and developing applications for z/VSE 197
Besides creating new application code, the programmer is responsible for
maintaining and enhancing the company’s existing mainframe applications. In
fact, this is frequently the primary job for many application programmers on the
mainframe today. While many mainframe installations still create new programs
with COBOL or PL/I, languages such as Java have become popular for building
new applications on the mainframe, just as on distributed systems.
8.2 Designing an application for z/VSE
During the early design phases, the application designer makes decisions
regarding the characteristics ...