We currently have CA PPM 14.2 installed. We have some users who have Open Workbench installed and other users with MS Project 2010 installed. Is it possible to have both applications installed on my computer without having a conflict when opening a project from Clarity in order to support both types of users?
Yes and not.
Yes you can install both.
No way to avoid conflicts, because you can only install one schedule connect for either one of the schedulers.
Use a virtual machine for the other.
But it is best to pick one (MSP or Open Workbench) for a specific project. Using both on a single project can be interesting.