3.3.1
• What Critical Path Analysis is.
• How to create a basic CPA diagram.
• The CPA diagram used in this presentation isn’t the standard method.
• The diagram used in this presentation is used to help your understanding of the concept of CPA.
• If you would like to find out how to create the standard diagram please refer to the useful sites slide at the end of the presentation.
• For any project to be successful it has to be well managed.
• There are many tools which can help a project manager to manage a project including:– Critical Path Analysis– Gantt Charts
• In addition to this they also help the project manager understand:
– What the critical tasks of a project are.• Critical tasks are those which, if not completed on time, would
cause delays in the development of a system.
– The minimum time it would take to complete a project.
– How to make the best use of resources to speed up development time.
Ref Task Time (mins) Type Dependant on…
A Fill kettle 1 Non-Dependent
B Boil kettle 2 Dependent A
C Put tea bag in tea pot 1 Parallel B
D Pour boiling water into pot
1 Dependent B, C
E Brew tea 2 Dependent D
F Get mugs ready 1 Parallel E
G Pour brewed tea into mug
1 Dependent D, E
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
Ref Task Time (mins) Type Dependant on…
A Fill kettle 1 Non-Dependent
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
B D2 min
Boil kettle
C1 min
Put tea bagin tea pot
A
1 min
Fill kettle
1 min
Pour waterinto pot
E
F
G2 min
Brew tea
1 min
Get mugsready
• Complete steps 1 and 2 for the following scenarios:– Making a cup of tea with just a mug.
– Making spaghetti bolognaise
– Washing a car
• http://www.mindtools.com/critpath.html
• http://revisionguru.co.uk/business/critical.htm
• http://www.bizhelp24.com/small-business-portal/critical-path-analysis-project-management-.html
• http://www.bizhelp24.com/small-business-portal/critical-path-analysis-part-2.html
• http://hadm.sph.sc.edu/COURSES/J716/CPM/CPM.html
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