Interior Architecture (Latin penitus architectura, from the Greek εσωτερικ?ς - esoterikos "interior" and ?ρχιτ?κτων – arkhitekton "chief builder, carpenter, or mason") is truly a marriage of three distinct design disciplines: interior design, architecture, and industrial design. Interior design focuses on the selection of interior materials, finishes, and furnishings; architecture on the design of building forms and systems; and industrial design on the design of manufactured products.[2] Another definition is the specific features of a building's interior. It can also be the initial design and plan for use, the later redesign to accommodate a changed purpose, or a significantly revised design for adaptive reuse of the building shell.