What is a PERT chart and how to make one

A PERT chart, which stands for Project Evaluation and Review Technique, is a project management tool that helps teams visualize and coordinate tasks within a project by highlighting task dependencies rather than time dependencies, unlike GANTT charts. Originally developed in the 1950s for the Polaris missile project, PERT charts offer precise planning and analysis of task linkages, allowing teams to identify critical paths and potential bottlenecks before project commencement. Despite requiring substantial upfront research and collaboration, PERT charts provide strong foundational planning by focusing on task dependencies, causes, and consequences, making them suitable for complex projects. While GANTT charts are more common and versatile, especially for chronological tracking, PERT charts serve as a cohesive guide, maintaining focus on overarching project objectives throughout its lifecycle.