3.3.4 Critical Path Analysis

Question 1

What is a critical path analysis?

Answer 1

the process of planning the sequence of activities in a project in order to identify the most efficient way of completing an integrated task or project. The aim is to complete the project in the shortest time possible

Question 2

What is a node?

Answer 2

• a circle

- beginning or end of an activity

Question 3

When is the EST and LFT equal?

Answer 3

on the critical path

Question 4

What is the critical path?

Answer 4

the longest path through a project - none of the activities on the critical path can be delayed without delaying the end of the project

Question 5

What is the float?

Answer 5

the duration an activity can be extended or postponed so that the project still finishes within the minimum time

Question 6

How is the float calculated?

Answer 6

LFT - Activity duration - EST = float

Question 7

Float will be 0 if …

Answer 7

If the activity is on the critical path

Question 8

Float will be calculated to a number if…

Answer 8

if the activity is not on the critical path

Question 9

Benefits of critical path analysis

Answer 9

• helps business meets deadline - especially for time-sensitive projects
• some projects are expensive and complex, so CPA minimises risk of missing deadlines and over-spending
• allow businesses to plan resources and build in contingencies

Question 10

Drawbacks of critical path analysis

Answer 10

• unforeseen incidents can cause delays despite completing a CPA
• time consuming to complete
• less necessary if the company is experienced in delivering similar projects or one big project is just a series of small projects