You've talked about managing small projects differently than large projects. How do you determine whether a project is small or large? - H.E., Washington
Distinguishing between large and small (and medium sized) projects goes along with establishing standard project deliverables. We make the distinction in size as a way to adjust the expectations about how much time should be spent managing the project.
The easy answer is to use cost as a size differentiator. Cost – whether in pure dollars or in labor hours – is the most common way to categorize projects. That makes a lot of sense, since it is objective data that is known at the time of project initiation. But a more complete answer includes assessing some other factors to rate the overall complexity.
In addition to cost, total duration of a project and team size are other factors that affect project size. These two factors usually increase the cost of a project, so in most cases cost can continue to be the only factor for project size.
The other factors to consider, though, are technical challenge (risk) and the number of stakeholders involved. Stakeholder diversity increases the amount of communication and coordination. Since most project management tools address communication or coordination, having many stakeholders justifies using the full set of project management tools even on a low-cost project.