ACA JJO study materials
ACA JJO study resources

ACA JJO key terms

ACA JJO · Get comfortable with the vocabulary.

Project scope

A written statement of what a design project will and will not include, such as deliverables, number of revisions, and supported media. It protects both designer and client from unplanned work.

Related: Deliverable, Creative brief, Sign-off
Creative brief

A short planning document that captures the client's goals, target audience, key message, budget, and deadlines. Designers use it to align decisions with business objectives before starting artwork.

Related: Project scope, Target audience, Sign-off
Deliverable

Any final file or artifact handed to a client or publisher, such as a print-ready PDF or a set of web images. Deliverables are usually listed explicitly in the project scope.

Related: Project scope, Sign-off, Output profile
Sign-off

Formal client approval of a stage or final artwork, often recorded in writing or email. Once given, further changes typically require a new change order or additional fee.

Related: Deliverable, Project scope, Proof
Target audience

The specific group of people a design is meant to reach, defined by factors such as age, interests, or reading context. Audience characteristics guide choices in color, type size, and tone.

Related: Creative brief, Visual hierarchy
Change order

A documented amendment to an approved project that records added work, revised deadlines, or extra cost. It keeps scope changes visible and prevents unpaid labor.

Related: Project scope, Sign-off
Visual hierarchy

The arrangement of elements so viewers notice the most important content first, then move through secondary information. Size, contrast, position, and color are the main tools for building it.

Related: Contrast, White space, Focal point
Focal point

The area of a composition that first attracts the eye, often created through contrast, isolation, or placement near a strong axis. A layout usually needs one clear focal point.

Related: Visual hierarchy, Contrast, Rule of thirds
Rule of thirds

A composition guideline that divides a frame into a three-by-three grid and places key subjects near the intersecting lines. It tends to produce more dynamic images than dead-center placement.

Related: Focal point, Balance
Balance

The distribution of visual weight across a composition. Symmetrical balance mirrors elements around an axis, while asymmetrical balance offsets a large shape with smaller or darker ones.

Related: Visual hierarchy, White space
Contrast

The degree of difference between elements in value, color, size, or shape. Strong contrast improves legibility and creates emphasis; weak contrast can make a design feel flat or hard to read.

Related: Visual hierarchy, Value, Focal point
White space

Empty or unoccupied areas in a layout, including margins, gutters, and space around text. It is an active design element that improves readability and gives content room to breathe.

Related: Margin, Visual hierarchy, Balance
Alignment

The placement of elements along shared edges or invisible axes so they relate to one another. Consistent alignment makes a layout look intentional and organized.

Related: Grid, Margin
Grid

An underlying structure of columns, rows, and margins that guides where elements are placed. Grids create consistency across pages or screens and speed up layout decisions.

Related: Alignment, Margin, Gutter
Margin

The space between the edge of a page or artboard and the content area. Margins frame the design and protect content from being trimmed or clipped.

Related: Gutter, Bleed, White space
Gutter

The space between columns of text or between facing pages in a spread. Adequate gutters keep columns distinct and prevent text from running together.

Related: Margin, Grid
Bezier curve

A smooth curve defined by anchor points and direction handles that control its shape. Vector drawing tools use Bezier curves to create precise, scalable paths.

Related: Anchor point, Path, Direction handle
Anchor point

A point on a vector path where the path changes direction or where a curve begins and ends. Anchor points can be moved, added, or deleted to reshape artwork.

Related: Bezier curve, Path, Direction handle
Path

A vector line or shape made of anchor points connected by straight or curved segments. Closed paths enclose a fill area; open paths can be stroked but do not enclose space.

Related: Anchor point, Stroke, Fill
Direction handle

A control extending from an anchor point that determines the angle and length of the curve leaving that point. Dragging a handle reshapes the adjacent segment.

Related: Bezier curve, Anchor point
Fill

The interior color, gradient, or pattern applied inside a closed vector shape. Fill is independent of stroke and can be set to none to leave the shape hollow.

Related: Stroke, Path, Swatch
Stroke

The outline painted along a vector path, defined by color, width, and dash pattern. Stroke settings determine how thick or visible the edge of a shape appears.

Related: Fill, Path, Appearance panel
Compound path

Two or more paths combined so they behave as a single object, allowing holes such as the center of the letter O. Overlapping areas can be excluded from the fill.

Related: Pathfinder, Path
Pathfinder

A set of operations that combine or subtract overlapping vector shapes, producing results such as unite, minus front, and intersect. It is a fast way to build complex silhouettes.

Related: Compound path, Path
Live trace

A feature that converts raster images into editable vector paths by detecting edges and color regions. Results usually need cleanup because tracing can create excessive anchor points.

Related: Raster image, Vector graphic, Anchor point
Vector graphic

Artwork described by mathematical paths and points rather than a grid of pixels. It can be scaled to any size without loss of sharpness, making it ideal for logos and signage.

Related: Raster image, Bezier curve, Resolution
Raster image

A picture made of a fixed grid of pixels, such as a photograph or scanned artwork. Enlarging it beyond its native size reveals visible pixelation and softens edges.

Related: Vector graphic, Resolution, Pixel
Pixel

The smallest addressable square of color in a raster image or on a screen. Image dimensions and file size are commonly expressed as a count of pixels.

Related: Raster image, Resolution
Resolution

The amount of detail an image or output device can represent, often stated in pixels per inch for images or dots per inch for printers. Higher resolution yields finer detail at a larger file size.

Related: Pixel, Raster image, DPI
Color mode

The numerical system used to describe color in a document, such as RGB for screens or CMYK for process printing. Choosing the correct mode early prevents unwanted color shifts later.

Related: CMYK, RGB, Spot color
CMYK

A subtractive color model using cyan, magenta, yellow, and black inks, standard for commercial offset and digital printing. Colors are created by ink absorbing light reflected off paper.

Related: RGB, Color mode, Spot color
RGB

An additive color model using red, green, and blue light, used by monitors, phones, and cameras. RGB files usually must be converted for print because some bright colors cannot be reproduced in ink.

Related: CMYK, Color mode, Gamut
Spot color

A pre-mixed ink printed from its own plate rather than built from process inks, often specified by a numbered swatch system. Spot colors give consistent, sometimes unattainable, results and add plate cost.

Related: CMYK, Swatch, Color mode
Gamut

The range of colors a device or color model can reproduce. Colors outside a printer's gamut are described as out of gamut and will shift when converted.

Related: RGB, CMYK, Color mode
Swatch

A named, saved color or gradient stored in a document's palette so it can be applied consistently. Editing a swatch updates every object that uses it.

Related: Spot color, Fill, Global color
Kerning

Adjustment of the space between a specific pair of characters to correct awkward gaps, such as between an A and a V. It is applied manually rather than across whole ranges of text.

Related: Tracking, Leading, Typeface
Tracking

Uniform adjustment of spacing across a range of characters, loosening or tightening an entire word or paragraph. Unlike kerning, it affects all letter pairs equally.

Related: Kerning, Leading
Leading

The vertical distance between baselines of consecutive lines of text. Too little leading crowds lines; too much breaks the reader's flow down the page.

Related: Baseline, Kerning, Typeface
Baseline

The invisible line on which the bottom of most letters sits, excluding descenders. Leading is measured from one baseline to the next.

Related: Leading, Typeface
Typeface

A complete design of letters, numbers, and symbols sharing consistent visual characteristics, such as Helvetica or Garamond. A font is the specific file or style of that design.

Related: Font, Kerning, Leading
Font

The specific digital file or style instance of a typeface, such as bold or italic at a given size. People often use the word loosely to mean typeface.

Related: Typeface
Hierarchy of type

The use of size, weight, color, and spacing to rank headings, subheads, and body copy so readers can scan in order of importance. It mirrors visual hierarchy at the text level.

Related: Visual hierarchy, Typeface
Layers panel

A panel that lists stacked objects or groups, letting you select, hide, lock, and reorder them. Layers keep complex documents manageable and control which items appear in front.

Related: Artboard, Linked image, Appearance panel
Artboard

A defined drawing area within a document that represents one page, screen, or output size. Multiple artboards let one file hold several versions or formats.

Related: Layers panel, Output profile
Linked image

A placed image that remains stored in an external file and is referenced by the document rather than embedded. Links keep files small but require the original to be present or packaged.

Related: Embedded image, Package, Layers panel
Embedded image

A placed image whose data is stored inside the document file. Embedding makes the file self-contained but increases its size and prevents automatic updates from the original.

Related: Linked image, Package
Package

A command that gathers a document and all its linked files and fonts into one folder for handoff or archiving. It helps prevent missing-asset errors at a print vendor.

Related: Linked image, Preflight, Sign-off
Preflight

An automated check for output problems such as missing links, low-resolution images, or RGB colors in a print job. Running it before export catches costly errors early.

Related: Package, Resolution, Output profile
Bleed

Extra artwork extending past the trim line so color reaches the paper edge after cutting. Without bleed, slight misalignment leaves thin white slivers on finished pieces.

Related: Trim size, Margin, Output profile
Trim size

The final dimensions of a printed piece after it is cut down. Design files are built larger than trim size to include bleed and crop marks.

Related: Bleed, Crop marks
Crop marks

Short printed lines outside the trim area that show the printer where to cut. They are added during output and must sit outside the bleed.

Related: Trim size, Bleed
Output profile

A saved set of export settings, such as format, resolution, color space, and compression, tailored to a destination like print or web. Reusing profiles keeps output consistent.

Related: Deliverable, Preflight, Resolution
DPI

Dots per inch, a measure of how many printer dots fall in one inch of output. Higher values produce finer print detail; it differs from pixels per inch used for screen images.

Related: Resolution, Pixel, Bleed
Proof

A preview of the design as it will be produced, used for checking color, text, and layout before final output. Clients often approve a proof before printing begins.

Related: Sign-off, Preflight
Overprint

A setting that prints one ink on top of another instead of knocking out the area beneath it. It is used to avoid registration gaps but can cause unexpected color where it is unintended.

Related: CMYK, Spot color