The brief describes the requirements that need to be reconciled and accommodated, and is developed first as a design which is submitted for approval, and subsequently constructed as a building or other structure.
Environmental conditions might include temperature range, humidity, air movement, acoustic isolation, etc..The schedule of accommodation is prepared by an expert to help in determining the minimum space required on site to develop and finish a given design.
), ceiling finish, including acoustic needs, engineering services required: power, lighting, air-conditioning, water, drainage, communications, etc.
; environmental conditions: air temperature, humidity, noise level, air movement; access and security needs; FFE (furniture, fittings and equipment), with note made of mass, dimensions, power requirements, energy evolved, noise produced, ventilation and extraction needed, service and operating clearances; fire safety.
A graphical validation might include demonstration of the movement expected between spaces, and show how a proximity diagram is modeled onto the design layout.