ABSTRACT
However, production is a very resource intensive process, not only in terms of the materials used to the construct buildings, or indeed the labour and plant involved in undertaking the construction process, but also in the amount of money customers need to commit to develop bespoke products. As a result, detailed project appraisals are often regarded as a critical stage in the evolution of construction projects. At this point the customer or employers will be faced with several fundamental decisions that will ultimately determine the success or otherwise of projects.
