Tehniquaka

The substances or materials used in the creation of a work of art, as well as any production or manufacturing techniques, processes, or methods incorporated in its fabrication. This information includes a description of both the materials used to create the work and the way in which they were put together.

This category identifies the materials of which a work is composed; where applicable, the "role" of a material (which is a repeatable subcategory) may be distinguished as medium (e.g., oil paint, watercolor, graphite) or as support (e.g., canvas, oak panel, laid paper).

An object or work's physical composition is described after careful examination. Conservators may be consulted to identify specific pigments. Techniques often considered in the realm of scientific examination, such as X-radiography, may also be used to determine the relationship of one layer of pigment to another, or the presence or absence of an underdrawing.

an artist will handle materials in different ways, and because different modes of expression are more appropriate to one technique than another (consider the expressive character of a brush-and-ink drawing in relation to a pen-and-ink drawing), grouping works by these characteristics is useful for purposes of comparison.

Physical changes that took place after the object or work was created or manufactured should be recorded under CONDITION/EXAMINATION HISTORY, except for those resulting from conservation or restoration treatment, which should be recorded in CONSERVATION/TREATMENT HISTORY.

Specific patterns or shapes formed with the materials mentioned here should be noted in the category PHYSICAL DESCRIPTION.