Request for Proposal (RFP)

A document that solicits a proposal from suppliers, often as part of a bidding process, by an agency interested in procuring a commodity or service. An RFP is used when a general need or problem must be solved, and potential sellers are proposing solutions and how...

Radio frequency identification (RFID) device

Small microchips containing unique and individual information related to the item on which the chip is attached. The chip, and therefore the information, is addressed by means of radio waves conveyed to the chip by an attached antenna. These devices are now so small...

Rainbow printing

A form of offset security printing involving a split duct process, which results in a gradual change of two specific colours.

Rasterisation

The task of converting a vector graphic image into a raster image (ie. a series of pixels, dots or lines which recreate the vector image). The higher the resolution, the greater the number of pixels per unit area. Raster images are used for ensuring a smooth...

Reflected light

The bouncing of light off an object (as opposed to light that transmits through an object).