Chapt 6 slides
9
BASIC TERMINOLOGY IN CONSTRUCTING PERT/CPM 1. Project Network Diagram:- It is a Pictorial representation of the sequence in which the project work can be done 2.Activity:- Chunk Of Work. 3.Slack/Float Activity :- it is that type of Activity which can be started earlier or finished later without affecting the time duration of the Project CHAPTER 6-1
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Transcript of Chapt 6 slides
BASIC TERMINOLOGY IN CONSTRUCTING PERT/CPM
1. Project Network Diagram:- It is a Pictorial representation of the sequence in which the project work can be done2.Activity:- Chunk Of Work.3.Slack/Float Activity:- it is that type of Activity which can be started earlier or finished later without affecting the time duration of the Project
CHAPTER 6-1
BASIC TERMINOLOGY IN CONSTRUCTING PERT/CPM
4. Slack/ Float of an Activity:- It is the time duration for which an activity can be slacked/Floated.5.EST:- Earliest Start time of an activity.6.LST:- Latest Start time of an activity.7.EFT:-Earliest Finish time of an activity.8.LFT:- Latest Finish Time of an activity.9.Critical Path:- It is the largest path or sequence of Activities (in terms of Activity Time Duration), through the Network Diagram.
CHAPTER 6-2
SAMPLE NETWORK DIAGRAMCHAPTER 6-3
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2
4
3
5 DAYS9 DAYS
8 DAYS 11 DAYS
A
B
C
D
Question: Calculate Critical Path From Above Network Diagram
CONSTRAINTS WHICH EFFECT SEQUENCING OF PROJECT ACTIVITIES
There are Four type of constraints which effect the sequence of Project Activities:-1. Technical constraints.2. Management constraints.3. Inter Project constraints.4. Date Constraints.
CHAPTER 6-4
ACTIVITIES DEPENDENCIES
A dependency is a relationship that exist between activities. To say that Activity B depends on Activity A. It means Activity A produces a deliverable which is needed in order to do the work associated with Activity B. there are Four type of Activity Dependencies.
CHAPTER 6-5
Continued…
ACTIVITIES DEPENDENCIES
1. Finish to Start (FS):- When A finishes B start.
2. Start to Start(SS):- Activity A & B Start Together
CHAPTER 6-6
Continued…
A B
A
B
ACTIVITIES DEPENDENCIES
3. Start to Finish (SF):- Activity B can only finish when Activity A has Started.
4. Finish to Finish (FF):- Activity A and Activity B finish at the same time.
CHAPTER 6-7
BA
A
B
ACTION PLAN
Activity Precedence Time DurationA - 5 DaysB - 4 DaysC A 6 DaysD B 2 DaysE B 5 DaysF C, D 8 DaysAssignment:- Draw a PERT/CPM from above Action Plan. Calculate critical Path? Please submit this Assignment to the Teacher in next Class.
CHAPTER 6-8
Continued…
PERT/CPM OF ACTION PLAN GIVEN AS ASSIGNMENT
CHAPTER 6-9
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2
3
4
5 DAYS6 DAYS
2 DAYS
4 DAYS
A
B
C
D
Critical Path = A + C + F= 5 Days + 6 Days + 8 Days= 19 Days
5
E
F
5 DAYS
8 DAYS
