Introduction

The most common data collection tools used in VX are Virtual forms. The idea is that instead of having a single form shown (which could cover your display window), each item is prompted for individually with arrows that allow you to move up and down your form. Thus you have a fixed window which looks at a single field of a sliding form. To the user this appears as a series of prompts which all come from a single area.

In VX (and OpenVX) virtual forms are implemented using "template" files. These are external ASCII files which describe the overall form so that VX then knows what to prompt for each time it slides the form to a new field.