Interior - architectural and decorating the interior of the building, providing favorable conditions for human life, the inner space of a building or a separate room, an architectural solution which is determined by its functional purpose.

At the heart of interior design is the synthesis of pragmatic and artistic ideas and solutions aimed at improving the conditions of human existence in a holistic aesthetically perfect form. The interior consists of  the following components:
• Building envelope - floor, walls, ceiling;
• substantive content (equipment, furniture);
• functional processes that shape and space, and sensory and psychological atmosphere.
• Aesthetic content - decorative furnishing, decoration (Paintings, pictures, decorative interior itimes)