The document outlines the various roles involved in construction projects including architects, engineers, quantity surveyors, project managers, and more. Architects design building structures and oversee the construction process. Engineers design building systems and structure. Quantity surveyors advise on costs. Project managers organize and monitor projects to represent client interests. Other roles include estimators, planners, construction managers, buyers, surveyors, and various types of civil engineers. The document provides details on the responsibilities of each role.