Mainframes are still relevant and running mission critical systems. SME’s are retiring, taking important system knowledge with them and closing the window of available application expertise. In a legacy world, no one knows everything. Without current documentation, legacy IT environments can be costly to maintain and difficult to change. The Business wants to leverage knowledge trapped in its legacy systems and IT needs to accurately answer questions to better serve stakeholders.
When legislation affecting the application is enacted or new functionality is requested, the lack of documentation and business rules requires the programmer to refer to the only information available… millions of lines of source code. Equally challenging is determining an effective long term strategy for these mainframe systems. The national failure rate for large system replacements is greater than 50% making the selection of a modernization strategy a critical process.