The purpose of a literature review is to demonstrate a comprehensive knowledge of a given field, and to identify the relevance and the gap for the current research project to exploit. This report focuses on the literature around Business Process Improvement (BPI), within a particular domain of use. This review discusses and analyses methods for BPI . Several methods apply to implementing BPI; however, this report discusses five key underlying BPI methodologies relevant to the research: Six Sigma , Lean , Total Quality Management (TQM) , Business Process Reengineering (BPR)  and AGILE . This is not to suggest that there are only these six approaches available, but rather they are the most useful approaches for the rationale discussed below. There are numerous other techniques such as a Strengths, Weakness, Opportunities and Threats (SWOT)  assessment that could be described as a BPI approach, and a series of adjunct technical skills such as Business Process Flow Diagrams (BPFD) , Dynamic System Development Method (DSDM)  and Rapid Application Development (RAD)  that could be within the scope of a BPI literature review, but currently, not necessarily for the research objectives of this state but eventually will be explored further as the research progress.