According to Bruno Martins, within the Desliga Mainframe program, there were two possible ways to migrate APC: find a ready-made package on the market or rewrite it. "We couldn't find any ready-made software that had the same specific features and functionalities as our application. So the way forward was to look for a specialized company capable of rewriting the system," he recalls. But in order to rewrite APC, it would be necessary to use a reverse method, since there was no documentation for the old system. Starting with the code, the chosen company would have to retrieve the business rules, maintain the integrations with existing systems, among other important information.

The director also says that another requirement of the company was that the new system should be very similar to the old one in terms of functionality, navigation and interactivity, avoiding major training efforts given the short timeframe for implementation.

To take on the challenge, the applications area was looking for a company specializing in the mainframe platform, systems development and support. "We held a technical meeting with the 3CON team, who understood the challenge. The partnership was a success. We were able to migrate APC within the timeframe we needed and with the gains we expected," he said.

The director says that by using the reverse method, the 3CON team was able to recover the business rules from the original system and everything was done in a very short time, something very commendable given the complexity of the project. He says that, in around seven months, the new system in .NET and Oracle was delivered, very intuitive, with usability gains and with the same characteristics as the old APC, which helped a lot in the transition between one system and another, making users comfortable with the new platform.