Process modelling techniques are officially defined as the use of graphical representations and other tools to document, analyze and improve existing processes. It is a powerful tool that enables organizations to visualize the processes they are involved in, and to make changes that will improve the efficiency and effectiveness of them. Process modelling techniques allow organizations to identify inefficiencies, streamline their processes, and reduce waste. It can help organizations gain a better understanding of the complex interconnections between different processes and resources, which can then be used to identify bottlenecks and redundancies. Process modelling techniques can also help organizations identify potential areas for improvement, and create a framework for making changes. This technique is used to gain a better understanding of the current state of the organization’s processes, and to evaluate potential solutions and strategies that may lead to a more efficient and effective process. It enables organizations to develop a strategy for improving the overall efficiency of their processes, and to make changes that are both cost-effective and beneficial.