Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 1 What is Activity An activity or task is a given kind and amount of work which: –Consumes time –Consumes Resources –has a definable beginning and ending Fixing False Sealing 3 men x 30 days Start time 3000 board type End time

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 2 What is Project A project is a set of activities with –A well-defined objective(s) –A target completion date –An estimated budget

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 3 Type of Schedule Written Schedule Gantt Chart (Bar Chart) CPM Schedules (Critical Path Method) –Activity on Arrow –Activity on NodeAB PERT LSM (Linear Schedule Method)

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 4 Bar Chart STEPS –Analyze the project and specify the basic approach to be used. –Break the project down into a reasonable number of activities to be scheduled. –Estimate the time required to perform each activity. –Place the activities in sequence of time, taking into account the requirements that certain activities must be performed sequentially. Logical constrain Resources constrain –If a completion date is specified, the diagram is adjusted until this constraint is satisfied.

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 5 Bar Chart Example:

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 6 Solution

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 7 Alternative Solution

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 8 Bar Chart Advantages of Bar Chart –Very Graphical –Easy to understand –Most widely used Disadvantages of Bar Chart –Difficult to Update –Difficult to find the Critical Path –Difficult to setup and maintain a large project because it is essentially a manual graphical procedure.

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 9 How to identify the Critical path in a Bar Chart Types of a Project Activity –Critical Activity: if it is delayed, it will delay the project. –Noncritical Activity: it may not delay the project if it’s well managed.

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 10 STEPS to identify the Critical Path Start with the last Activity; Draw a vertical line from the i Node of late Activity. The activities whose j nodes touch the vertical line, are Potential Critical Activity. Draw a vertical line from the i node of the new critical activity. Proceed in this manner until you reach Day 0.

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 11 Identify the Critical Path

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 12 Class Work

Spring 2008, King Saud University Bar Chart Dr. Khalid Al-Gahtani 13 CW Solution