A framework that helps a company evaluate any aspect of its user experience according to five metrics, which form the acronym HEART. These metrics are: 1. Happiness 2. Engagement 3. Adoption 4. Retention 5. Task success
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 attributes of a typeface. Type properties include weight, width, colour and x-height.
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.
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.
Scope creep is when the scope of a project starts to grow without any agreement on how it's going to be paid for. Creep happens because items and features are tacked on top of the original scope of work agreed upon in the original contract.
The art and science of arranging information so that it's intuitive to find, easy to navigate, presents a cohesive design, meets accessibility guidelines, looks attractive on any device or screen size and ultimately drives behaviour change.
One of the most common types of navigation in UI design. It's usually a system of one or more horizontal buttons placed at the bottom of the screen, directing users to other parts of an app or website. Bottom navigation is often used as an alternative to scrolling or tabbing through links on a page.
The distance from the baseline to the top of a capital letter, number, or other upper-case glyphs.
A graphical representation of a scenario, usually created and presented in sequence.
Also known as a suspension point, is a series of dots (…) that is used either as a substitute for some text that has been omitted from a sentence or when the author does not wish to pause in their writing.