ABSTRACT
This Part contains papers which contribute to the delineation of the field-what cost modelling has been and should be trying to achieve and how this has been and should be operationalised. By their very nature, these papers are ambitious and highly speculative, motivated by a desire to bring some semblance of order to the chaos perceived by their authors. Collectively, these papers contain what is perhaps the most exhaustive coverage of the factors and issues surrounding cost modelling adumbrated up to their time of publication. Considering that the reference material used by most of the authors of the papers is likely to have been very similar, it is surprising and instructive how different are their conclusions.
