I am writing my CV at the moment and I am at a tricky part.
I have redone a software for a company and I want to include this in my CV.
I have in my CV: "Erstellung eines Warenwirtschaftssystems in Visual Basic", although even this does not quite cover this.
They had an old system using Basic or something and I used a modern language, Visual Basic (don't trash me on that — I was young and needed money).
What would be the expression in correct English?