A work-back project plan, or work-back schedule, is a method that lets you schedule your project phases from the end date backwards. This is useful when your project has a known, hard deadline that needs to be met.
In a work-back schedule you determine when each planning element has to be completed at the latest in order to still be able to meet the final deadline: starting from this deadline you work your way backwards through all the necessary planning phases. Doing so, you calculate the latest possible end dates and start dates of each planning element of your project plan. Together with any necessary lag times, they form the basis for the calculation of the latest possible planning start of your project.
The planning elements in a work-back schedule are linked by a so called Start-to-Finish dependency.
Read here how to create a work-back project plan with InLoox.