What is the key benefit of a work breakdown structure?
The benefits of creating a WBS include: it defines and organizes the work required. it facilitates the quick development of a schedule by allocating effort estimates to specific sections of the WBS. it can be used to identify potential scope risks if it has a branch that is not well defined.
What are the different types of WBS?
The Project Management Institute (PMI) Project Management Book of Knowledge (PMBOK) defines the Work Breakdown Structure as a “deliverable oriented hierarchical decomposition of the work to be executed by the project team.” There are two types of WBS: 1) Deliverable-Based and 2) Phase-Based.
When would you use a work breakdown structure?
This technique (sometimes called a system breakdown structure) is used to define and organize the total scope of a project. The WBS is organized around the primary products of the project (or planned outcomes) instead of the work needed to produce the products (planned actions).
What is critical path in PM?
In project management, a critical path is the sequence of project network activities which add up to the longest overall duration, regardless if that longest duration has float or not. This determines the shortest time possible to complete the project.
How do you identify a critical path?
Your critical path is the longest path from the first column through the lines showing prerequisites to the last column. It determines the project completion date because you must complete all tasks on the path within the estimated time or delay the project.
What is critical path example?
For example, in the diagram below, activities E, F, G, H, and I make up the critical path. Their total duration is 100 hours. Activities B, C, D and E make up the second longest sequence with a total duration of 90 hours. However, since activities E is common and in the critical path, it would have zero float.
What if there are two critical paths?
It is perfectly feasible to have a small plan with more than one critical path. In that case, all the tasks on the multiple critical paths are critical which means that a delay in any one of those tasks will cause a delay to the completion of the project.
Is the critical path the shortest path?
Yes, the critical path is the longest overall duration for the sequenced activities. It is not the shortest project duration and it is the shortest time possible to complete the project.
How do you make a critical path?
There are six steps in the critical path method:Step 1: Specify Each Activity. Step 2: Establish Dependencies (Activity Sequence) Step 3: Draw the Network Diagram. Step 4: Estimate Activity Completion Time. Step 5: Identify the Critical Path. Step 6: Update the Critical Path Diagram to Show Progress.
Is Critical Path the longest or shortest?
“Critical Path is the longest path through the project network diagram, and it is an estimate of the minimum (shortest) project duration.”
Can a critical path change?
The critical path of a project will not remain static throughout its life, it can change during the course of project completion. Unforeseen circumstances sometimes may cause estimated duration of one or more activities to change.
What is a critical path analysis?
Critical path analysis (CPA) is a project management technique that requires mapping out every key task that is necessary to complete a project. It includes identifying the amount of time necessary to finish each activity and the dependencies of each activity on any others.
Is PERT and CPM the same?
PERT is that technique of project management which is used to manage uncertain (i.e., time is not known) activities of any project. CPM is that technique of project management which is used to manage only certain (i.e., time is known) activities of any project.
What is a pert CPM chart?
A PERT chart is a project management tool that provides a graphical representation of a project’s timeline. The Program Evaluation Review Technique (PERT) breaks down the individual tasks of a project for analysis.
Is pert more accurate than CPM?
Since PERT accounts for uncertainty and risk the expected duration is more accurate than the single point estimation technique.