There are Five Dimensions of Service that Project Managers should keep in mind as they provide project management services to their customers and teams.

Let’s start with a simple question: why do customers switch?

http://blogs.orange-business.com/live/2009/10/project-management-is-a-service-business.html

en Français:

http://blogs.orange-business.com/live-france/2009/10/le-management-de-projet-est-du-service.html