Your SolidWorks PDM standard volt is great at handling legacy data when we're handling legacy data and bringing this over into SolidWorks PDM standard. We need to consider the library components that are already stored inside our PDM vault. How do we want to handle duplicate files if the component already exists in our library of components and is already in our data set that we're trying to bring over? What can we then do to update references inside of PDM without the need for opening the files inside of SolidWorks, or even browsing to the file where it should be used in to update the reference. Before we then check that assembly into PDM. Well, inside of our PDM vault, we have a standard parts folder, and in there we've already brought across some standard components that we might use on a regular basis. When we want to bring in a legacy design, we'll simply bring it in by copying and pasting it into our PDM vault. And once we've copied and pasted it in, the system will detect any duplicates that are in that data set that we're bringing across. We can see the lead screw component that it's trying to add in here already exists in our standard parts folder. So we can correct this by simply deleting the duplicate. We don't want to allow duplicates of this component in PDM. So what we then need to do is update this assembly within PDM to tell it to use the lead screw in our standard library components folder. So rather than opening it up in SolidWorks and updating the reference, we'll simply go to the tools menu in PDM, update the references and it will then inform us which component or components it can't find. We can then tell SolidWorks PDM which folder we want it to search in for these missing files, and it will then analyze this folder, pick up that lead, screw component because it's in that folder. Once we finish this, we can then update the references and PDM will update all the references within this assembly that are using the lead screw from the standard parts folder. If we now go ahead and check this assembly in, it doesn't need to check the lead screw component end because it's picked up that it already exists as checked in within that standard parts folder. So we can then go ahead and check this assembly into PDM. And if we look at the contains tab, we'll see that our lead screw has been pulled in from the standard parts folder, that several tool box components are also being pulled from the toolbox folder. So with SolidWorks PDM, it allows us to bring across legacy designs and recognize that we need to update those references. It does this with relative ease and it prevents us from having any duplicates in PDM. So we have a folder which stores our standard library components and toolbox components as well.