This is a tool for making project plan and manage project progress. In this software, you can input all tasks and set the tasks' start time and end time, and the software will draw the Gantt Chart for you automatically. After your project has begin, you can input the actual start time and actual end time for every task, and the software will calculate the rest tasks' predict start time and predict end time. It's a useful tool for all the participaters of any project. Thanks your using. Thank my friends a lot.