DECORATIVE OR ORNAMENTAL ART
Decoration relates to the production of beauty in art, in which the first principle to be considered is symmetry the equal balance of two halves. The second principle is repetition.
Repetition may be considered as Simple, when the same unit is used repeatedly.
As Alternate, when two units are used alternately.
As Combined, when several units (each one different) are used.
Simple repetition. Alternate repetition and Combined repetition are seen in Fig. 2. Further complication appears in Fig- 3-
Conventional Design
To conventionalize means to represent by symbol of some exact preconceived outline, rather than by an attempt to duplicate resemblance to a natural object. To conventionalize, for instance, is to produce an ornamental design of such a character that it may be made up of several different integral parts, each of which is copied from some natural object, such as a leaf or flower, but which has been formalized into the typical rather than the correct representation of the original.
Or, to give another instance, it may be a leaf made to conform to some geometrical figure, such as the maple leaf drawn within the confines of a hexagon.