Medium Rise Apartments: Precedence Diagram, Critical Path, S-Curve and Expenditure Summary

Medium Rise Apartments 1
MEDIUM RISE APARTMENTS
Name
Course
Professor
University
City/state
Date

Medium Rise Apartments 2
Medium Rise Apartments
Question 1: Precedence Diagram
A precedence diagram
Precedence diagram is a very crucial tool in project management as it helps in identifying all
activities and scheduling them appropriately (Pintzos, et al., 2016). The diagram basically
comprises of boxes (known as nodes) that represent activities/tasks connected by arrows showing
how each activity depends on the other. This project has a total of 135 activities, making its
precedence diagram appear to be quite congested. The precedence diagram is as shown in Figure
1 below
Figure 1: Precedence diagram

Medium Rise Apartments 3
Critical path
Critical path is the longest path of the precedence diagram.
Duration for route A = 0 + 1 + 4 + 4 + 4 + 4 + 4 + 3 + 3 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 3 + 20
+ 0 + 0 = 66 days
Duration for route B = 0 + 1 + 8 + 8 + 8 + 8 + 8 + 4 + 3 + 3 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 3 +
20 + 0 + 0 = 90 days
Duration for route C = 0 + 21 + 5 + 5 + 5 + 5 + 5 + 5 + 3 + 3 + 2 + 3 + 20 + 0 + 0 = 82 days
Duration for route D = 0 + 21 + 5+ 7 + 13 + 13 + 13 + 13 + 13 + 7 + 5 + 3 + 3 + 6 + 17 + 20 + 0
+ 0 = 159 days
Duration for route E = 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 8 + 4 + 3 + 3 + 2 + 2 + 2 + 2 + 2 + 2 + 2 +
2 + 3 + 20 + 0 + 0 = 64 days
Therefore critical path is the route with the longest duration i.e. route D.
Early start/early finish
Early start is the earliest date that a task or activity can be scheduled to commence provided the
schedule’s constraints and logic. In this project, early start is on 13th January 2014.
Early finish is the earliest date that a task or activity can be scheduled to be completed provided
the schedule’s constraints and logic. Early schedule is the schedule comprising of early start and
early finish for each activity in the project schedule.
To determine early finish, we are going to use the route with the shortest duration i.e. route E (64
days).