An abbreviation for Portable Document Format. The PDF format was originally developed to share documents between different operating systems in the late 1980s. Any text document, image or page layout can be saved as a PDF file that includes all of the font information needed to display it without losing quality.
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 measure of the ease of understanding text.
The process of arranging type to make written material readable. The arrangement of type involves decisions about individual letters and words (e.g. line spacing, letter spacing, and word spacing) and more significant page layout decisions (e.g., margins, headline position on the page).
A diagram that reflects the processes and steps a user would take when completing a certain task or goal. The User Journey Map also highlights the key activities, touchpoints, stakeholders, and benefits of an experience. In order to develop an effective strategy that helps guide users through the process of reaching their goals and objectives, the User Journey Map provides a comprehensive view of how your customers will navigate towards achieving their goals.
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 portion of an image where the remainder is discarded.
Affordances describe a relationship between the environment and an animate object, classified as either positive or negative.
Items, such as a car that leads to movement, have a positive affordance. Things like stairs that lead upwards have a negative affordance because they will not allow for any other form of movement other than up or down if used accordingly.
The process of a new user being brought in to a new product. The design for this process aims to have an effective, efficient, and engaging user experience.
A theory in psychology that discusses the general idea that the whole is greater than the sum of its parts. It's based on a human need to search for stability and meaning, which leads to organic movements towards wholeness. Gestalt Theory assumes there are inherent flaws in how we perceive forms and patterns, and it holds that this innate tendency transforms into an active process of looking for order in reality.
Also known as the divine proportion, is a number, or a ratio, sometimes approximated by phi and widely considered aesthetically pleasing. The golden ratio has been featured in nature and art in many ways, including hexagonal honeycombs, the human body, and mathematics. More frequently, it is used in design and digital art to represent a path (or steps) one can take to achieve a particular look or result. In art, an artist may produce something (a painting or drawing, for example) using the golden ratio as a basis for its composition.