When checking out or adding objects to your workspace, your choice of download options (download, link, or reuse) should be guided by the current workspace situation and your intent. If your intent is to open the current server-stored model in Creo Parametric at some point in time, the Download option should be selected, as it downloads the content in a much more efficient manner with fewer performance concerns. Selecting Download does, however, overwrite any locally cached modifications, if they exist.

If you select the Link option during checkout, file data for that object is not downloaded during the checkout, but it will be downloaded at some subsequent time if it is requested by Creo Parametric. Whether a subsequent download is triggered or not, the server content is identified as the content of the object. Therefore, the link option can be used in scenarios where you want to overwrite (or have no) locally cached modifications of the CAD document, and have no intention to open the model in Creo Parametric. For example, you might want to modify the model parameters through the WindchillEdit Attributes page).

If the file already exists and is modified in your local cache, and you select Reuse, content for that object is not downloaded. Instead, the locally modified content becomes the content of the "added" object iteration or working copy. In other words, the reuse option is only applicable if you already have modified object content in your local cache.