ABSTRACT
The incompatibilty of estimating with the production process and any relevance to resource control was noted by Blyth and Skoyles (1984). In competitive tendering the completed building should reflect the information provided at tender stage but rarely does so. Any calculation of resources at the start of a contract will therefore remain fluid for much of the duration of the building process. Resource control is seen to involve labour, plant and materials; but information is also a resource. It is in the form of drawings, specifications and instructions and required control. A limited proportion of resources are in the direct control of the site manager when there is a high element of subcontracting.
