Cost estimation is the process of predicting the expenses associated with a project before it is undertaken. This research area involves developing methods and tools to accurately estimate the financial resources required for completing a project. Cost estimation is essential for project planning, budgeting, and decision-making in various industries such as construction, engineering, software development, and manufacturing. Researchers in this area explore different cost estimation techniques, data analysis methods, and factors that influence project costs to improve the accuracy and reliability of cost estimates. The goal of cost estimation research is to help organizations minimize financial risks and achieve successful project outcomes.