All available space (line-height) between two consecutive lines of text; this measurement should be adjusted for either ascenders or descenders. In hand typesetting, leading referred to thin strips of lead inserted by hand between lines of type in the composing stick to increase vertical distance.
In handwriting and calligraphy, ball terminals are the end of a stroke that resembles a ball. They are also used in some typefaces like cursive or old-style typefaces.
A way of developing new products or services using a process of repeated and regular refinement, in which prototypes are made, evaluated, revised, and re-evaluated until the desired result is achieved. High profile companies have successfully implemented iterative design to create effective and innovative products.
Generally used when a page has so much content that it would be impossibly long to load the entire page at once. Infinite scroll consists of an auto-generated list of items that constantly loads new items as they load off the bottom of the screen.
A digital image captured by a digital camera or scanner that has not been processed in any way by the camera software.
An iconic design that is made up of two or three letters.
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 statistical method in which two variants of the same activity are compared against each other (typically with several variants), one at a time, and the most effective variant is selected.
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.
Red, green, and blue. These colours can be used to form a wide variety of colours in different devices such as computer monitors and televisions.
A process in which subjects use a product or service under test conditions and report their experience.