Cap Height

The distance from the baseline to the top of a capital letter, number, or other upper-case glyphs.

More terms you might want to know

Widow

The last line of a paragraph following the rest, or a single line in a paragraph that is out of place with the rest.

Eye-Tracking

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.

Lowercase

The designation of a set of character encoding styles for glyphs that are not capital letters.

Orphan

One or more words (typically at the end of a paragraph) that are separated from the rest of the text. Orphans are generally thought of as bad design, but it’s a matter of taste.

Vertex

The meeting point where two lines cross.

Terminal

The end (straight or curved) of any stroke that doesn’t include a serif. Some typefaces feature ball terminals on letters such as the ‘f’, ‘a’, and ‘c’.

Affinity Diagram

A data visualisation tool that can be used to explore and group people's thoughts or reactions to a set of concepts. Affinity diagrams are often used in user research and design thinking as an experimental technique for generating new ideas or solutions.

The emergent patterns in these visual representations can help identify which aspects your audience will respond well to, thus enabling decisions on the information architecture and next steps in the process.

It is important to note that affinity diagrams were initially developed for qualitative research but have since been adapted for quantitative research (though they are not typically used with statistical data).

KPI

A key performance indicator is a variable that measures how well an entity is performing. It's a figure that designates an individual or item's performance level. A particular company may use metrics such as sales, revenue, production, and market share to gauge the success of their firm.

Shade

The relative lightness or darkness of a hue.

Tittle

The typographic term for the dot above the letters 'i' and 'j'.

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