Responsive Design

The process of developing a product or design system that can be altered to fit different device and interaction contexts.

More terms you might want to know

PDF File

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.

Fitts' Law

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 space that an item has around it.


A small picture or design that represents an idea, function, or some other type of visual concept. For example, in computer graphics and web development, an icon is a pictorial representation of a program or file type.

Miller's Law

An observation in Psychology that suggests that the number of mental objects the average person can keep track of is seven (plus or minus two).


A measure of the ease of understanding text.

Font Colour

Also known as text colour, is a visible attribute of text determined by the combination of text and background colour.


A system of columns and rows designers use to create layouts. It's used in graphic design and web development to align elements for easy use on the page. Grids are a key part of design because they help you create balance, rhythm, proportion and hierarchy in your layout.

Bottom Navigation

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.

EPS File

An Encapsulated PostScript file (.eps) is a vector graphics format. EPS files are typically used to exchange artwork between different design programs, such as Adobe Illustrator and other vector graphics applications, including CorelDRAW, Inkscape, SIAE Draw and others. EPS files can also be used to provide a file format for print.


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