Actually, the predecessor product to eVision was available 10 years ago, called spEDI*Tran and I implemented it extensively with one of my customers. As I recall, the product was a bit less expensive than some of the well-known other packages and it was suitable for deployment on either Unix or Windows ... might have run about $6000. But, developing maps and debugging them was an art form so just about every document they implemented they spent another $3000 of my time, sometimes more when people came up with new requirements for the interface file. I could have saved them a ton of money with a facility like Stylus Studio.