A graphical representation of the density and distribution of data points. Denser regions in the image are interpreted as the data points' frequency, while lower densities are interpreted as fewer data points in that area.
Heatmaps show you where people worldwide are clicking on content to help you understand how people interact with your website designs and content.
A type of user interface design carefully crafted to trick people into doing things they might not want to do.
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.
A quick and rough sketch of what you are about to work on. Good for getting the ideas out of your head and onto the page while you're still in that creative phase.
A sample of the target audience for which a product or service is intended.
A phrase that is used in reference to someone's work. The term pixel-perfect can be used to describe something as being flawless without any errors.
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).
A selector that can be applied to any HTML element. ID should be used when designing for a single instance, such as using the id="main" attribute on an <h1> tag.
A standalone web page with content intended to capture a visitor. Often, it has the same URL as the website's home page and is used in paid or sponsored search engine marketing (known more commonly as pay-per-click) advertising campaigns.
A type of font that comes pre-installed in an operating system.
The print resolution of a printer. It's a measure of how many dots per inch can be printed on paper. Higher DPI means more detail and smoother transitions between colours.