A triad is a group of three colours that are equally spaced on the colour wheel.
Also known as text colour, is a visible attribute of text determined by the combination of text and background colour.
The degree of difference between the two sides of an object or system.
A discipline that analyses the usability of an application by assessing its interaction design and user experience.
The measure of a device or computer system's ability to capture fine detail. A higher number of pixels can provide more details and finer images on the screen.
A measure of the height of a set of text on an element.
A layout where all the content, mostly text, is aligned to the centre. The overall purpose of a Centre Alignment is to make it easier for users to read and scroll through content.
A philosophy that companies should take a user-centred approach to design, making sure they focus on the customer's needs and not on their company's needs. UX designers need to figure out what users want before building something and not after. They must also ask themselves if including "features" will provide any value to the product or service.
A prediction model used in human-computer interaction. It states that the time required to move to a target area rapidly increases as the distance to the target increases. The law was proposed by Paul Fitts, an American psychologist, in 1954 as a mathematical model of movement with limited cognitive capacity.
Fitts hypothesized that one would quickly select its first apparent target when reaching for an object before considering alternatives — a phenomenon called "target fixation." This tendency would increase progressively with increased distance between the subject and object until it eventually became exponential (i.e., too far away).
The act of gathering qualitative data about a person's thoughts and feelings related to a product.
A print that the printer receives to monitor the progress of production. Proofing is a matter of looking at the print to ensure that it has been printed correctly and that the colours are rendered accurately.