Cost Modelling A - Process Maps (PM)

Cost modelling is a process that attempts to bring design and price together. It has the objective of controlling costs, not just to measure them. Cost modelling therefore is defined to be the assessment and control of cost prior to the availability of knowledge of the element content of a project.

The role of the cost modeller is to facilitate the design process by systematic application of cost criteria so as to maintain a sensible and economic relationship between cost, quantity, utility and appearance which thus helps in achieving the client's requirements within an agreed budget. It commences when little is known about the project other than its overall size, probable location and type (or intent).

Cost modelling is undertaken progressively throughout the design and construction of a project and makes use of the information that is available at the time. It starts at the earliest stage when information may be available only about the type of building required together with its expected overall size and location. As more detail is added to the design, cost modelling can be refined based on area measurement of spaces until estimates can be developed based on complete knowledge of the elements to be incorporated within the project.
Five cost modelling stages are considered for the purposes of developing exchange requirements:

TODO: Include navmap of sub processes here