Etymologically, medium is a Latin word which means materials/means which are use by an artist in communicating his ideas, aspirations, emotion and his very self.

Thus, it is an essential element of ART.

On the basis of medium arts are primarily classified as VISUAL and Auditory Arts.

visual art, also called SPACE ART, are those whose media can either be seen or which occupy space.

Visual art is also divided into two (2) Groups/ classification:
Dimensional/two – dimensional
Painting
Drawing
Printmaking
Photography

Three (3) dimensional arts
Sculpture
Architecture
Landscape
Industrial design
Community planning
Craft - a. ceramics b. furniture-making

Auditory art, also known as TIME ART, those whose can either be heard or be expressed in time.

Classification of auditory art
Music
Literature

Combined Art, a type of art that uses both the media in visual and auditory art, i.e. those that can be seen and occupy space, and those which be heard and expressed in time.

Classification of combined art
Dance
Opera
Drama
Movies

Technique is the manner in which the artist controls his medium to achieve the desired effect. It is the ability with which he fulfills the technical requirements of his particular work of art.