This document discusses the role of quantity surveyors. It describes how the role has evolved from traditional tasks like measurement and cost estimation to more modern roles in areas like contract management, risk management, and life cycle costing. The future role of quantity surveyors is expected to involve greater use of BIM and other digital technologies. A key role discussed is that of a project quantity surveyor, which involves cost planning, procurement advice, valuation, and contract administration during the pre-contract and post-contract stages of a construction project.