Analogous estimation is a project management technique used to predict the duration or cost of a project based on the performance of similar past projects. By comparing the current project to previous ones that share similar characteristics, project managers can make informed estimates. This method is particularly useful when there is limited information available about the new project. The accuracy of analogous estimation relies on the relevance of the past projects chosen for comparison. If the previous projects are closely aligned in scope and complexity, the estimates are likely to be more reliable. However, if the differences are significant, the estimates may not be as accurate.