Many sites have the backing of reputable companies with a long history of good service, but others may not. Design professionals can be wary of using a site that could be here today and gone tomorrow. Most project portals provide only basic security on their web site, which remains a major concern for most design teams. This issue is not only that of controlled access, but there are also concerns about security problems that can occur during the actual transfer of documents from a customised design environment to a public space. The number of errors that can happen while uploading or downloading documents is unknown.
Many companies lack any security protocol for using project portals.
This allows designers to interpret how things should work causing inconsistency and increasing the possibility of errors. Another consideration with project portals comes into play when you consider how potentially disastrous security problems may be caused if the web site becomes unavailable because of server problems. Document management desktop applications often have a customised environment that is tailored to a CAD department's security standards. Related to this are versioning issues. EDM software easily locates the right version of a design when the designer needs it most.