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 well-known UI element in computer applications. It's an expandable menu of context-specific commands typically launched from the application's main menu.
The number of visits that result in a purchase or some other goal. It can measure any conversion event, such as download, registration, purchase, etc.
A rule of thumb used in photography to create more visually appealing images which states that an image should be composed so that the subject or focus of the image occupies one-third of the picture space, with two equal vertical lines dividing their composition into two.
The design of the interaction between users and products. Interaction design is focused on creating products that enable the user to achieve their objective(s) in the best way possible.
Also known as visual hierarchy, hierarchy is the ordering of priorities in a design. This may include different visual elements, such as contrast, colour, font size and placement on a page. The graphic designer's job is to create an understandable document using organisational systems that the reader easily understands.
Contrast in design can be accomplished by placing two opposite colours adjacent to one another, creating a focal point within the design that dominates the composition.
Also called a paragraph mark, a paragraph sign or section marker, is a typographical character for separating paragraphs. It looks like a "ΒΆ".
A portion of an image where the remainder is discarded.
Framing consisting of cutting off or obscuring most of the surrounding of a subject, removing distractions from the background and emphasising the subject.
The setting on a camera's lens which controls how much light comes into the camera. Aperture settings can usually be set to F-stop values ranging from F1.4-F22. The higher the aperture value, the smaller the opening is, and vice versa, which affects the depth of field in photos and how much light reaches and illuminates a subject or scene in a photo.