management alpha 10 Minute Guide to Project Management PHẦN 5 ppt

Plain English

Parallel tasks

Two or more tasks that can be undertaken at the same time. This doesn't imply

that they have the same starting and ending times.

Dependent tasks are those that cannot begin until something else occurs. If you are constructing a

building, you first have to lay the foundation. Then, you can build the first floor, the second floor,

and the third floor. Obviously, you can't start with the fifth floor and then move to the third, not in

three-dimensional space as we know it.

Plain English

Dependent task

A task or subtask that cannot be initiated until a predecessor task or several

predecessor tasks are finished. Predecessor task Task that must be completed

before another task can commence.

The WBS is not the best tool for identifying the relationship between interdependent tasks. When

preparing a WSB outline, you want to proceed in chronological order, much as you want to do with

the tree approach. When you combine the outline and tree diagram type WBS, you end up with an

extended outline describing the tasks and subtasks associated with the elements on the tree

diagram. Thereafter, you can alter the position of the boxes to be in alignment with what takes

place and when. Hence, parallel tasks are on the same position on the chart. As you can see in

the figure below, some items, such as assignment and resource, occur at the same time.

Adding detail to the WBS sequence.