Procuring OSM: base-line models of off-site manufacture business processes in Australia

A pressing cost issue facing construction is the procurement of off-site pre-manufactured assemblies. In order to encourage Australian adoption of off-site manufacture (OSM), a new approach to the underlying processes is required. The advent of object-oriented digital models for construction design assumes intelligent use of data. However, the construction production system relies on traditional methods and data sources, and is expected to benefit from the application of well-established business process management techhiques. The integration of the old and new data sources allows for the development of business process models which, by capturing typical construction processes involving OSM, provide insights into such processes, This integrative approach is the foundation of research into the use of OSM to increase construction productivity in Australia. The purpose of this study is to develop business process models capturing the procurement, resources and information flow of construction projects. For each stage of the construction value chain, a number of sub processes are identified. Business Process Modelling Notation (BPMN), a mainstream business process modelling standard; is used to create base-line generic construction process models. These models identify OSM decision-making points that could provide cost reductions in procurement workflow and management systems. This paper reports on phase one of an ongoing research project which is intended to develop a prototype workflow application that can provide semi-automated support to construction processes involving OSM and assist with OSM adoption decision-making, thus contributing to a sustainable built environment.