A task is a work item inside of a project. It represents a finite amount of work smaller than the project.
Tasks can be assigned to users to be completed. When all the tasks in a project are completed, the project Status can be marked Complete.
For more information about projects in Workfront, see "Creating a Project."
The following are types of tasks in a project:
You can break down a task that is larger in scope into several smaller tasks that are easier to complete. The smaller tasks become the children tasks or subtasks of the original task. The original task becomes the parent task.
Depending on what the Summary Completion Mode is on the project, you maybe be able to complete a parent task independently from its children tasks. By default, you cannot complete or update a parent task independently from its children.
For more information about the Summary Completion Mode of projects, see "Editing Projects."
Subtasks or children tasks are tasks listed under a parent task. They typically influence the update and the resolution of the parent task.
For more information about parent tasks, see "Understanding Parent Tasks."
For more information about creating a child task, see "Creating Tasks in a Project."
Working tasks are tasks that do not have children or subtasks of their own, nor are they listed under another parent.
This is an important distinction because it is possible for children tasks to have children tasks of their own.
You can update and complete working tasks without influencing the update or resolution of other tasks.
Linked to Creating Tasks in a Project.