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Conversion of Telon to run-time free PL1 or COBOL or PLI code

Conversion to run-time free Cobol or PLI would be of interest to sites who perhaps have an ongoing requirement to maintain their existing Telon based applications but no longer develop new ones and therefore do not perceive any benefit in such a development tool. These sites are currently locked in to Telon due to its run-time elements.

The generated Cobol or PLI is modern, well structured and easy to maintain particularly for experienced Telon developers. Any Telon subroutines are replaced by non proprietary code and all run-time dependency is removed meaning there are no ongoing licence requirements.

The migration process is relatively simple and is usually carried out off-site. Initially we analyse the Telon environment and programs and configure our Casegen software so that it reflects all macro changes, environmental options and setup options specified.

All Telon options, environments and databases are supported. We then import the Telon code from the TDF into Casegen which is then used to generate the Cobol or PLI code to be delivered ready for testing. As in any conversion exercise, testing the original vs new application is always required. We have developed several tools over the years, including the ‘Casegen Checker’, an intelligent rule-based utility which compares the functionality of the Telon generated program against the Casegen generated one, in order to highlight any discrepancies before delivery back to the client. This helps to minimise testing requirements, although the criticality of the application will normally govern exactly how much testing is deemed necessary. It is possible during the migration to make some fundamental platform changes such as changing IMS/DC (IMS/TM) applications into CICS applications.

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