Vector

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.

The unused or empty space in a composition of images, either two-dimensional (as with paintings) or three-dimensional (as with sculptures).

A measure of the ease of understanding text.

A tool that allows user experience designers, or people who design products and websites with consumers in mind, to track where users look on the screen. Eye-tracking can measure users’ attention and the duration of time they spend on different areas of a website. With this information, websites can create user experience solutions such as buttons with varying colours designed to catch the eye.

The path of any movement, mark, shape, or other feature of a design. It can be the border of an element or even the tight edge of a text box, etc.

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.

A well-known UI element in computer applications. It's an expandable menu of context-specific commands typically launched from the application's main menu.

A technique for understanding people’s experience of a product or service. Participants are asked to keep daily records of their experience using the product, and these records are taken into consideration when designing the design.

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.

A graphical representation of the user on a device, used to represent various users in different contexts. It can be a photo, image or drawing.