1. Project Management (seminar)
WBS & GANTT chart
Project Management
(seminar)

2. Work Breakdown Structure
Similar to the assembly (Gozinto) charts.
A tool used to define and group a project's discrete work elements (tasks) in a way that helps organize and define the total work scope of the project.
The project is divided into hierarchical groups of tasks (work packages, and work units).
Tasks, work packages and work units should be budgetable (money, labor hours, and other resources).
The technique of creating a WBS is non-uniform.
Gozinto chart: named after the FICTIVE Italian mathematican, Zepartzat Gozinto .

3. Example of a WBS

4. Possible levels in a WBS
Project (or sub-project)
Deliverables
Sub-deliverables
Work packages
Work units

5. Assembly chart (Gozinto chart) example

6. WBS example

7. Example of WBS: “Holiday”
travel
documents
booking
household
passport
tickets
choose
resort
confirm
cat!
brochures
insurance
Original slide is from the internet

8. What is the greatest difference between a Gozinto and a WBS chart?

9. WBS exercise Plot a Gozinto and a WBS chart for the next project:
Main task: prepare lunch with 2 dishes.
The 1st course requires 2 main groups of ingredients (A & B) that should be bought separately (time to buy is 30 mins per ingredient-group). Cooking is 1 hr.
The 2nd dish requires 3 group of ingredient (A, C & D), procurement time is the same). Cooking needs 1.5 hrs.
Cleaning after cooking needs 20 mins for 1 person, 10 mins for 2 people.

10. GANTT charts
Named after Henry Gantt ( ) an American mathematical engineer.
A Gantt chart is a type of bar chart that illustrates a project schedule.
Gantt charts illustrate the start and finish dates of the work elements (tasks) of a project.
Elements of a GANTT chart:
Task names
Start and finish dates of each tasks (graphically)
Dependency relationships
Task duration
Lag relationships (start-to-start, finish-to-start etc.)
Name of the project worker responsible for the task or
other resource specifications

11. Benefits of the GANTT chart
Easy to read and comprehend
Easy to create
Identify the project network coupled with its schedule baseline
Allow for updating and project control
Useful for resource planning

12. Limitations
can become quite unwieldy for projects with too many activities
projects are often too complex for a Gantt chart
Gantt charts represent only a part of the project constraints
The technique of creating a GANTT depends on the features of the project.

13. GANTT chart example ID Activities Who is responsible? Time intervals 1. 2. 3. 4. 5. 6. 7. 8 9
10.
11.

14. GANTT chart example
Some Gantt charts also show the dependency relationships between activities. 6. 5. 4. 3. 2. 1.
time
activities

15. GANTT chart example

16. GANTT chart example
Gantt charts can be used to show current schedule status using percent-complete shadings, or colour lines and a vertical "TODAY" line. 6. 5. 4. 3. 2. 1.
time
Activities
today

17. GANTT exercise
Given the WBS from the previous exercise and the additional information that there are two identical project workers (X and Z) who can work simultaneously, plot a simple GANTT chart with the following content:
Task names
Time schedule (time units are 10 minutes long)
Task durations
Denominate the person in charge for every task
Simultaneous work is possible.

18. GANTT exercise 2 How long is the full project?
Denote the precedence relationships in the chart!

19. GANTT exercise 3
Show the schedule status on the GANTT chart for the same project after 80 minutes if:
All the A, B and C ingredients are bought, but the purchase of ingredient D is only 67% complete.
The 1st course is already half-cooked, but the „operations” on the 2nd dish could not started yet.

20. GANTT exercise 4
Plot a new chart with the same data but with real times within a day. The following information are added:
The market, where the ingredients should be bought is open only from 8 a.m. to 10 a.m. and the earliest is the better.
The lunch preparations (including the cleaning) should be ready exactly at noun (12 a.m.).
Do not plot the schedule status.

21. Readings
Lockyer – Gordon (2005) Chapter 4

22. Thanks for the attention!