IBM i offers an integrated language environment that supports a broad range of open application options, with best-of-breed IBM Rational® development tools as well as a wide range of options from IBM tools partners. The integrated language environment for i enables companies to exploit existing application assets, while taking advantage of new business opportunities with a range of open technologies. A variety of technologies can be used to implement a Service-oriented Architecture (SOA), integrating traditional transaction processing language environments with today’s open source technologies.
IBM i includes a runtime for AIX applications—the Portable Application Solutions Environment—enabling UNIX applications more simply to be ported to the system. IBM i is also shipped with a powerful Command Language(CL) that is commonly used for automating complex operations, such as for deploying batch processing and job scheduling.
Many businesses running IBM i (formerly i5/OS and OS/400) have an existing inventory of applications, data and business processes that are rooted in RPG or COBOL language-based, green-screen applications. Businesses trying to enhance or extend these applications to the Web, or integrate with partners and suppliers, often face technical challenges or skills shortages. Rational Software can help businesses overcome these challenges by providing tools, processes and best practices to enable existing and new IT staff to build and deploy modern Web 2.0 or SOA-based applications for IBM i without rewriting the proven code that works – thus lowering the risk and total cost of deploying new innovative business solutions.
ISV solutions written for i are routinely deployed with a combination of development languages optimized for transaction processing such as C,RPG, COBOL and C++, as well as environments optimized for Web-based and open source applications such as Java™, EGL, and PHP.