• In this reading Ching spoke about the difference between architecture and building construction. He states that architecture deals with scale proportions and organization of the interior spaces of the building as well as the functional zoning of the spaces of that building according to the purpose and use of that spaces. Ching also explains that a system is an assembly of interrelated or interdependent parts forming a more complex and unified whole that serves a specific purpose. Structural system was also mentioned as designed and constructed to support and transmit applied gravity. On the other hand enclosure systems are the envelope of a building that consists of the roof, exterior walls, windows and doors. Their are also mechanical systems which are what provides the essential services to a building.