PERT Chart Expert, now called WBS Schedule Pro (PERT Version) is project management software used to plan and display projects using a PERT chart (also known as a Network Chart, Precedence Diagram or Logic Diagram). The simple click and drag interface makes scheduling projects a snap. PERT Chart Expert unscrambles the tasks and dependency lines so you can create your project plans quickly and easily. PERT Chart Expert calculates Critical Path as you go so you'll always know those tasks that have the most impact on the schedule. PERT Chart Expert is both a standalone planning program and an add-on to Microsoft Project. Create charts directly from existing MS Project plans. A toolbar button is installed into MS Project for easy transfer of data. Changes made in the PERT chart are immediately reflected in the MS Project plan. You can add, delete, reorganize and update tasks in your MS Project plan using the PERT chart. PERT Chart Expert contains extensive PERT charting capabilities unlike those found in MS Project.