The degree of difference between the two sides of an object or system.
A concept used in systems design to describe the negative consequences of making seemingly innocuous design changes. Shorthand for a product's delayed but inevitable need to be reworked due to earlier, seemingly trivial decisions not having been fully thought through in the original release.
Designers incur this "debt" by making quick and easy choices that save time in the present but cause more complex problems later on down the road when it becomes necessary to change or add something.
PPI stands for Point Per Inch. PPI is the number of dots per inch in a printer's resolution or the number of pixels per inch in a monitor's screen resolution. The more PPI, the higher your image quality will be as it becomes sharper and clearer. The lower your PPI, the lower your image quality will be, and the more likely you'll see individual pixels in an image.
A well-known cognitive psychologist's principle that says that the time it takes to make a decision varies logarithmically according to the number of choices. As more options are presented, more decision time is required due to the mental work of comparing and contrasting each potential option.
The process of applying a thin layer of foil to paper coated with adhesive on one side.
A small, non-preview image that accompanies a larger image. It provides an immediate sense of the content while not necessarily revealing it in its entire scope.
A photograph that is purchased and licensed for exclusive use by an individual or business.
A PNG (Portable Network Graphics) file is a bitmap image format that has been designed to store images with an alpha channel. This format is primarily used for transparency so that it can be placed over other graphics in many design applications.
A unit for defining the size of a font. It's not a distance; this unit's measurement is only relative to the typeface's design.
A printing term that describes how close an object is to the edge of a printed page. Bleeds are often used in graphic design for books, magazines, posters and other printed materials with photographs or illustrations.
The process of developing a product or design system that can be altered to fit different device and interaction contexts.