This thesis looks at the two main thinking types currently encountered in project management i.e. Predictive & Adaptive Project Management. Predictive project management thinking consists of the development of a schedule from a known scope and then managing the implementation of the project in accordance with that schedule. This type of thinking is also known as the traditional approach to project management and has been extensively used since the introduction of project management in the 1960s. Adaptive thinking is used for fast track projects that are going to be subjected to a high rate of change and uncertainty. Methods have been developed mainly in the IT industry to deal with the fast turn-around and demand for IT and software development projects. Projects utilising adaptive project management thinking deliver the final product through a series of iterations and rely on high calibre and empowered individuals to make critical decisions.