Scenario: Assume, you are the Sub-Contracts Manager working for a construction company named A22 Construction Pte Ltd. You are responsible for the selection and management of the subcontractor resources for A22. Presently, A22 are building a three-storey commercial building in Perth, Western Australia (WA) with approx. 4500 m2 of carpet area. This is purely an ofce building and doesn't include any other building classes like Class 6, 7, 8 or 9 (as per NCC). A22 have the capability to perform most of the construction works except the following tasks (which thus need to be subcontracted): a. Heating Ventilation and Air-Conditioning (HVAC) b. Electrical Wiring c. Security System (1. Carpeting Even though A22 have the resources to perform the flooring works, the company's management has requested you to evaluate the advantages / disadvantages of using a subcontractor