You’re only as strong as your weakest link. The article Are You Still Using FTP for CAD File Transfer? on Engineering.com by Scott Wertel caught my attention few days ago. The article compares FTP, cloud file sharing and cloud based PDM. Read the article and draw your opinion. I found something common between all these approaches – you need to transfer files between desktop or LAN server and some other (usually remote) locations – FTP, virtual cloud drive or similar storage used by cloud PDM. Here is my favorite passage:
Let’s look at a product development scenario. A designer has finished the preliminary design of a brand new widget. He is in a small design shop, so he keeps the files on his personal computer. He wants a rapid prototype of the design made so he emails the file to a service bureau. As the bureau is working up a quote for the prototype, the designer notices a few things and makes some tweaks. The file size is too big now, so he uploads it to his company’s FTP site and emails a notification to the bureau. But, because the project is still in development and no files have been released, the designer doesn’t change the revision on the file. It’s the same filename on the FTP site as was emailed previously to the service bureau. Now the bureau has two files downloaded to their system. Both with the same filename and both contain relatively the same time stamp caused by saving the email attachment at about the same time they downloaded the file from the FTP site. Rather than being able to quickly quote the part and begin shooting laser beams, they have to spend the time to reconcile the files, also taking up the designer’s time.
So, in my view, the need to send files between local computer and remote location is the weakest link to make that work efficient. Both PDM and any other file sharing service will face this challenge. And, forget the cloud and internet for a minute) it was the same challenge back in every PDM system developed in the past. PDM developers used different techniques to optimize file transfer, but the problem remains the same – slow connection and large files.
The move to the cloud, actually, doesn’t change much. The connection is still slow (relatively) and files are still big (or even getting bigger). As I discussed few days ago in my How to move CAD files to the cloud post, a special technology needed that will break CAD files synchronization process and make the process transparent. At the same time, user should be able to work on the same file to satisfy the scenario described in the beginning of this post. Whoever will be able to accomplish so, will take a huge advantage of knowledge about CAD files and improved user experience. Read more here – CAD companies and cloud storage strategy.
What is my conclusion? The weakest link of PDM is the ability to sync large multi-file design between local discs and cloud (server) storage. It was the problem back to PDM development in 1990s and it remains the problem today. Until now, cloud doesn’t change much, since most of cloud PDM and file-share vendors are taking CAD files with existing boundaries. To break these boundaries and develop technology to move file efficiently while allowing to user to work on the same files at the same time, can be a deal breaker and huge step to fix the weakest link. Just my thoughts…