Reskinning Applications.

A common requirement is to get an existing application pull out the data and put a new front on it it.

Common requests are Microsoft Access Databases upsized into Microsoft SQL Server and a web front end put on it to access the data.

It's not just as simple of building a like for like system, really what is the point in that, it's about examining the current system looking at the improvements that can be gained from better workflows, improved user interfaces.