We're happy to announce the publish of a new white paper by Chris Vanderluis of HMS Software for the "From the Trenches" column in the Project Server 2010 TechCenter and the Project Server 2007 TechCenter . This latest white paper - "Top-down or bottom-up" - discusses project management, portfolio management, and task management, and it compares the top-down and bottom-up management practices related to them. Here is some bio information about the author: Chris Vandersluis is the president and founder of Montreal, Canada–based HMS Software , a Microsoft Certified Partner. He has an economics degree from McGill University and over 24 years experience in the automation of project control systems. He is a long-standing member of the Project Management Institute (PMI) and helped found the Montreal, Toronto, and Quebec chapters of the Microsoft Project Users Group (MPUG). Publications for which Chris has written include Fortune , Heavy Construction News , Computing Canada magazine, and PMI’s PMNetwork , and he is a regular columnist for Project Times . He teaches Advanced Project Management at McGill University and often speaks at project management association functions across North America and around the world. HMS Software is the publisher of the TimeControl project-oriented timekeeping system and has been a Microsoft Project Solution Partner since 1995. Chris Vandersluis can be contacted by e-mail at: email@example.com . If you would like to read more Enterprise Project Management related articles by Chris Vandersluis, see his blog: EPM Guidance .