Balance The design or arrangement of parts in a whole grouping that creates a feeling of equilibrium or equality. Collage The use of varied textured elements or found objects within a composition. Concept An idea, thought, theory or notion conceived in the mind. Contour The outline or outermost edge of a plane that defines its shape. Contrast A condition achieved by the placement of one or more elements in opposition to each other. Design trilogy The three basic shapes: square, triangle and circle. Direction The visual sense of movement resulting from the orientation, position and arrangement of shapes within a format. Dominance A condition that occurs when one or more compositional elements within a visual field is emphasised and becomes more visually prominent than the others. Dimension The actual size of figures and forms within the visual field measured in standard units. The dimensions of a regular planar figure are measured according to height and width, whereas the dimensions of a regular volumetric form are measured according to height, width and depth. Equilibrium The state that occurs when a number of forces act upon a structure and the structure does not move, or if already moving, does not change its state of motion. Figure Outline or contour of an object, shape, form, image and so on. Form A total three-dimensional whole such as an object, geometric solid, product, sculpture or architectural structure. Two-dimensional form The visualisation of space, shape and form. It is confined to a surface and executed by various media (for example, photography, drawing, painting, digital images and so on). 1 Three-dimensional form A form that is tangible in its position in space. It has actual height, width, depth and volume. Format A two- or three-dimensional field or space in which art forms, visual messages, designs and environments are created. Two-dimensional formats have length and width, while three-dimensional formats have length, width and depth. Gradation The process of change by regular, even steps, indicating a gradual advance. Texture and pattern gradation are types of monocular depth cues used by artists, architects and designers to indicate depth on a two-dimensional picture plane. Ground That which is behind a figure, without dominant form. Harmony A state of visual order or aesthetically pleasing relationships among the visual elements in a two- or threedimensional composition form or structure. Kinetic Describes motion caused by force in a volume or structure. Line Conceptually, a point in motion that has only one dimension which is length. Line has both a position and a direction in space. Mark A visible sign, such as a point or line, in a given space. Mass A solid body or a grouping of visual elements that compose a solid unified form. Pattern An emphasis on visual form relationships through the repetition of one or more visual elements. Most textures also have or create a specific pattern. Perceive To distinguish or observe through the senses: to see, feel, hear, taste or smell. Perceptual Describes something understood through sensory stimuli, as opposed to an abstract concept. Physical Describes actual materials, objects, products or environments that exist tangibly in space. Plane Conceptually, a two-dimensional expression of length and 2 width. A plane is a line that is stretched in two-dimensional space in a direction other than that of its length. Point The simplest and most minimal of the visual elements used in art, architecture and design. It is considered the prime generator of all form and can be used to determine and define location in space. Position Location of an element or image in space. Compositional elements can be positioned on a two-dimensional picture plane relative to the height and width of the format or in three-dimensional space with respect to the height, width and depth of a defined field. Positive and negative shapes When a shape (positive) is placed onto a plane, the area around the shape assumes another shape (negative). Proportion A comparison between size and quantity. Proportions are often expressed in terms of ratios such as 1:2, or they can be expressed in more general terms such as “twice as big as” or “darker than”. Repetition A recurrence of one or more compositional elements within the visual field or format. Rhythm A recurrence or repetition of visual elements in a regular, harmonious pattern. Rule of thirds A technique of composition in which a medium is divided into thirds, creating aesthetic positions for the primary elements of design. Scale Size and dimension of figures and forms relative to some unit of measure. Relative scale A scale represented in painting, drawing and photography through the inclusion of known objects. For example, if an adult person is shown next to a building in a composition, this gives the viewer a sense of the building size because the viewer has a general idea of the actual size of the person. Shape The specific surface configuration of a plane, figure or object. Shape can be representational or abstract. The basic two-dimensional regular geometric shapes are called squares, circles and triangles. 3 Solid A definite form or volumetric shape composed of some type of material or substance. Space A two- or three-dimensional area defined by visual elements. For example, a two-dimensional space may be a picture plane or format, and a three-dimensional space might be an environment or building interior. Space also refers to boundless or unlimited extensions in every direction. Two-dimensional space A plane having length and width, which is sometimes called the picture plane format. Three-dimensional space The total environment perceived by the viewer, which includes length, width and depth. Static Describes the condition that occurs when forces are prevented from causing motion by equal or opposite resisting forces. Also refers to a composition of figures or forms that appear to be at rest and visually balanced. Surface The outermost boundary of any two-dimensional shape or the outermost plane on a three-dimensional form. Symmetry The correspondence between opposite halves of a figure or form on either side of an axis or set of axes. Asymmetry Lack of symmetry designating an unequal spatial arrangement. System A group of related elements or independent elements that form a collective entity. In the example of form generation, the system might consist of a group of related shapes or forms. Texture The characteristics of a physical surface that are experienced through touch or vision, which can be represented on a two-dimensional picture plane through various drawing and media techniques. Tactile texture The physical surface of an object that can be experienced through touch. Visual texture The representation of a textured surface through images providing visual clues of tactile experience. 4 Volume A three-dimensional form that has length, width and depth. Volumetric forms consist of points (vertices), lines (edges) and planes (surfaces). Hue A specific colour or light wavelength found in the spectrum, ranging circularly from red through to yellow then blue and back to red. In visual perception these are known as primary hues. Secondary hues The result of a combination of any of the two pigment primaries of red (magenta), yellow and blue (cyan) in equal proportions, producing orange, green and violet. Chroma Brightness or dullness of a hue. The chroma range extends from neutrality (greyness) to the brightest, most intense colour a pigment can provide. Monochromatic Describes anything having a single hue. Monochromatic compositions consist of variations of one hue, using tints and shades. Shade A hue combined with black. Tint A hue combined with white. Tone A hue combined with white and black. Drawing A graphic process that depicts or represents figures and forms on a surface by using either pencil, pen, marker or computers to produce points, lines, tones, textures and so on, that illustrate an image. Sketch or sketching A graphic process in which only those basic lines necessary to generally describe an object or form are used. Freehand drawing The use of hand-eye techniques for recording an image without the support of mechanical tools or instruments. Projection drawing The utilisation of conventional drawing systems, such as orthographic, axonometric, oblique, and perspective projections. Technical drawing A drawing which depicts objects, human figures or interior and exterior environments with great representation, or a 5 drawing which uses a projective drawing system and selected or mixed media. Perspective drawing A three-dimensional projection that shows an object as the eye sees it from one particular point of view. The types of perspective are one-point, two-point and three-point. Orthographic projection drawing A multi-view drawing represented in two dimensions. It is a parallel projection of the planes and elevations in which all angles remain the same and all dimensions are true to scale. Axonometric projection drawing A general term for parallel projections that are isometric, diametric or trimetric. Oblique projection drawing A form of parallel projection in which one set of faces is parallel to the picture plane. Plan drawing A scale drawing of the object viewed from above. Thumbnails Small drawings representing visual notetaking of ideas. Elevation A scale drawing of an object in vertical projection. Axis A real or imaginary line through a shape or solid about which a compositional element or group of elements is symmetrically arranged. Grid A visual structure system, often invisible, that can be used in conjunction with symmetry operations and transformations in the creation of compositions. Golden ratio (also golden mean or golden section) A ratio within the elements of a form, such as height to width, approximating 0.618. Hierarchy The simplest organisational structure for visualising and understanding complexity. Nonrepresentational Shapes that are free-form or abstract. Orientation The position of a compositional element relative to the format or other elements in a composition or structure. Orientation is the placement of the figure or form within a given space described as “facing forward”, “upside down” 6 and so on. Prototyping The use of simplified and incomplete models of a design to explore ideas, elaborate requirements, refine specifications and test functionality. Legibility The visual clarity of text, generally based on the size, typeface, contrast, text block and spacing of the characters used. Readability The degree to which prose can be understood based on the complexity of words and sentences. Icon A sign that resembles an actual referent. Ideogram A sign characterisation that expresses the idea but not the letters or sounds of the word that represents the idea. Semantics The relationships among signs and symbols and the objects they represent. Semiotics The theory of signs first set forth by Charles Morris. Semiotics describes relationships between signs and their referents, while semiology is the science or art of signs. Sign A symbol or compositional element that represents thoughts, objects or events. Syntactics The study of the formal properties of signs and symbols and their relationships to other signs. 7