Mark Perine is part of the Global IT division of Marriott International. As Sr. Director of Corporate systems he lead the implementation of MS PPM Online for the Global IT division for the purposes of project and portfolio management. This was one of the first large enterprise implementations of MS PPM Online. Mark also has previous experience implementing the on-prem version of MS PPM, and has been using Microsoft Project Server / Project Professional for the past 15 years. Marriott International is the world's largest travel lodging company with hotels and vacation clubs around the world.