What makes a project different from business as usual?
Change: Projects are the means by which we introduce change.
Temporary: Projects are only temporary and once they are completed the business as usual resumes (in its new form) and the need for the project is removed.
Cross-functional: Projects involve a team of people with different skills working together.
Unique: Every project is unique in some way and this uniqueness enables people to change their usual routine and how they do things.
Uncertainty: The characteristics already listed will introduce threats and opportunities over and above those we typically encounter in the course of business as usual.