3. NETWORK PROGRAMMING
A DUMMY IS USED –IT IS ALWAYS SHOWN AS
DOTTED LINE
Total Float
The total amount by which an activity can be extended or
delayed without affecting the total project time (TPT)
Calculation
Latest Time Finish Event (LTFE) – Earliest Time Start
Event (ETSE) –Duration
Or
The total amount by which an activity can be extended or
delayed without affecting succeeding (subsequent)
activities or the Total Project Time.
5. NETWORK PROGRAMMING
Building up a network
The time flow from left to right
The start and end of each activity has an
event
Activities are shown by arrows activity on
arrow networks
Events are given numeric or ALFA
numeric number to identify
6. NETWORK PROGRAMMING
Head node numbers are higher than tail node
numbers
Tail node is known as ‘I’ number
Head nude is known as ‘j’ number
Together they are shown as I J
An event is a point where activities start or
end.
All activities terminating at an event must be
completed before the next activity starts.
12. NETWORK PROGRAMMING
Network Programming
The steps in producing a network are:
A) Listing the activities
B) Producing a network showing the logical relationship
between activities
c) Assessing the duration of each activities
D) Determining the start and finish times of each
activities and the available float
E) Determining the resources required
F) Produce the schedule
13. NETWORK PROGRAMMING
Ask yourself
1) Which activity must be completed
before the next activity can start?
2) Which activity can not start until this
activity is complete?
3) Which activities have no logical
relationship with this activity and can not
start at the same time?
14. NETWORK PROGRAMMING
Prepare a Network Diagram for the above
project and reduce the duration of the
project by at least 5 weeks.