Danske Bank is the largest financial enterprise in Denmark and one of the largest in the Nordic region. The Group Teller System was implemented in the Bank’s branches in 2001, and since then various new functionality has been developed for the system. Microsoft no longer supports the VB6 IDE, so the bank decided to convert it to the .NET platform.

Branch Systems in Retail Solutions were given the assignment to convert the Group Teller System from the VB6 platform to the .NET platform. The application consists of 350,000 lines of code, a fact that ruled out the option of manual conversion. The company therefore chose VB Migration Partner to support the conversion, since this tool is developed particularly to support conversions from VB6 to .NET. This decision has meant a fast conversion and also brought to a noticeably improved conversion quality.

”In terms of effort, using VB Migration Partner is significantly more efficient than manual conversion or rewriting from scratch, especially considering that banking applications require very rigorous testing plans. As a matter of fact, much of the effort was spent on quality assurance, as the project has been focused on securing a high quality of the finished product”, says Michael Munk Lerskov, Project Manager. "After the conversion the Group Teller System was successfully deployed on more the 2.000 clients. Training of the users was not needed because the user interface was similar to the interface of the VB6 version. This is an additional advantages of using VB Migration Partner, that the converted GUI is almost identical to the original one."

You can read the entire case study here.