Revising parts in the 3DEXPERIENCE platform helps us to keep track of design changes and store the history and evolution of our products. While revising files can be driven by change actions which introduce approval stages, this video focuses instead on the tools available on the Lifecycle and Collaboration tab. Let's check how a revision scheme is configured under the Platform Management role. Open the Collaborative Spaces Control Center app on the right hand side. Select ‘Lifecycle and Collaboration’. To specify the formatting of a revision. Under revision format, we can choose Primary or Primary.Secondary, if a secondary component to the revision is enabled. The secondary component is incremented when a new revision is created and the file is not in the released state. When a new revision is created for a file that is in the released state, the next primary revision is used and the secondary component is reset. While the secondary component will always be numerical, we can choose whether we want letters or numbers to denote the primary component of a revision, under revision naming roles for physical products. When selecting the alphabetical component, a variation can be selected where letters are skipped. Let's demonstrate how to revise a file in SOLIDWORKS. For this example, we will be using primary revisions only, and using an alphabetical revision scheme. By using the Maturity command under the Lifecycle tab we’ll release the handle to revision ‘A’. This lets us see our maturity graph and the roots available to us when moving our file between states. Once the file is released, we can start a new revision to implement the design change. Using the New Revision command will move us to the in-work states. Set the file to relesed and lock the file to us so we can implement our design change. We've now introduced a grip to the back of the handle. After this modification is complete, we want to save our changes and the revision to revision B. When saving to 3DEXPERIENCE, we have the option to unlock the file. After unlocking, the file will follow up by moving it to the release state using the maturity command again, but this time from the right click menu.