The point at which the user interacts with a device or piece of software viewed on a monitor. Where a user submits information to a form before entering or being granted permission to enter a system. An image that is composed of individual elements e.g. arc, line, polygon, that have their own attributes. These attributes can be individually edited. A drawing type package is usually required to display such vector images.
File sizes tend to be smaller than raster images.
Visually Lossless A compression technique that reduces the file size by removing data such that the eye does not notice. A visual comparison between the original file and the compressed file do not show any marked differences. A comparison of the binary code will determine the differences. XML EXtensible Markup Language - a form of SGML that allows the user to cutomize tags to give functionality that is not available in HTML . A protocol that is an international standard for information retrieval.