Activity
Scheduling Terms
Reviewed by forProject Technology - updated Sep 2026
Quick definition: An Activity, also called a Task, is a measurable, discrete unit of work with a clear start and end. It's the basic building block of a project schedule, and activities are sequenced and linked together to build the overall schedule.
An activity is the basic building block of a project schedule. It's a distinct, scheduled piece of work performed during a project — something measurable, discrete, and necessary to complete the project's scope. When activities are logically sequenced and linked to one another, they form the network schedule used to plan, execute, and control the project.
Why it matters
Activities are the building blocks of the project schedule — their durations and dependencies are what determine the Critical Path and the overall finish date. Getting activity-level detail right is essential for accurate schedule logic.
Also known as
Task
Used in
Network Schedule construction; Critical Path Method scheduling
FAQ
Is there a real difference between "Activity" and "Task"?
Not typically — most EVM systems use the terms interchangeably, though some define one at a lower level of detail than the other.
Do all activities have their own budget?
Not necessarily — some exist purely for schedule logic, while cost and resources are tracked at the Work Package level above them.
Definition maintained by forProject Technology.
© 2026 forProject Technology, Inc.
© 2026 forProject Technology, Inc.
