A PhD thesis on change management is a highly specialized piece of research. It focuses on the analysis and implementation of effective strategies for managing changes within an organization. This research typically involves analysis of existing change management systems, case studies of successful implementations, and development of new strategies for increasing organizational effectiveness.

The first step in writing a PhD thesis on change management is to identify a specific research question or problem that needs to be addressed. This could include examining the impact of different strategies on organizational outcomes, the effectiveness of particular change management practices, or how organizations can best adapt to changing external circumstances. Once the research topic has been identified, the researcher must then develop an appropriate methodology for addressing the issue. Depending on the complexity of the issue, this might involve conducting interviews, surveys, experiments, or even field research.

The second step is to review existing literature on the topic and synthesize the results into a comprehensive overview of the field. This review should include the findings of previous research, current trends, and any theoretical frameworks that may be relevant. It is also important to assess and compare different approaches to change management in order to identify which may be better suited for particular contexts.

The third step is to develop a theoretical framework for the research. This should include a detailed outline of the hypotheses being tested, outlining the steps that will be taken to test them, and providing evidence for or against each hypothesis. This framework will provide the basis for the dissertation's data collection and analysis.

The fourth step is to collect data and analyze it in order to test hypotheses and draw conclusions about the overall effectiveness of different change management systems. This step requires careful analysis of qualitative and quantitative data, as well as an in-depth understanding of the broader context and implications of the issue being studied.

Finally, the fifth step is to write up all of the findings in a comprehensive and cohesive dissertation. This should include sections on methodology, results, discussion, implications, and recommendations. The dissertation should be written in clear and accessible language so that it can be understood by a wide range of readers.