In the Vivado Design Suite, you can work on I/O and clock planning at any stage in the design flow using any type of project. Following are the most commonly used methods.
Tip: You can also run the Vivado Design Suite and perform I/O and clock planning for Non-Project Mode. For information on both Project Mode and Non-Project Mode, see this link in the Vivado Design Suite User Guide: Design Flows Overview (UG892).
Video: For more information on performing I/O planning at various stages of the design process see the Vivado Design Suite QuickTake Video: I/O Planning Overview.