Abstract
As office buildings are becoming larger, state of the art, higher by development of domestic industry section, professional organizations are necessary for outsourcing operation & maintenance(O&M) of office buildings. However, the O&M cost estimating standards for facility management have not standardized against the outsourcing management trend. In addition, it is difficult to estimate operation & maintenance cost systematically. When owners and managers decide O&M plan or rent, they may have problems on estimating budget for facility management. Therefore, this study developed an O&M cost estimating model using various construction characters through Case-based Reasoning(CBR) and Multiple Regression Analysis(MRA). It is expected that by using the O&M cost estimating model, facility owners or mangers could have advantages to perform tasks of O&M cost plan for the facility management, and could make a decision weather to reduce or increase the O&M cost by derived specific cost on the O&M. Also, when the owners want to change self-operated facility management to outsourcing facility management, they can first compare O&M cost which is needed in self-operated facility management with that of outsourcing facility management, and then make a decision to select a appropriate facility management method.
