# PERT and CPM – 20 Critical Path and Slacks – Floats Part 6 of 8 Interfering Float - Videos

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#Operations Research_OR
#Network Analysis
#PERT and CPM
#Project Management
#PERT Chart
#Network Diagram
#Float_Slack
#Interfering Float

Draw Network Diagram and trace the Critical Path. Also Also find Total, Interfering, Free and Independent floats/slacks :
Activity
Name: A B C D E F G H I J K
Activity
Node: 1-2 1-3 1-4 2-5 3-5 3-6 3-7 4-6 5-7 6-8 7-8
Duration
(days): 2 7 8 3 6 10 4 6 2 5 6

Float – Slack – Free Time:
The float or slack or free time is the amount of time by that an activity can be delayed or extended without delaying the project completion time.

Interfering Float:
The part of the total float which cause a reduction in the float of the successor activities is called interfering float.

Interfering Float =
= (Lf of activity – Es of Successor) or 0 (zero), whichever is larger

Total Float:
The total float of an activity represents the amount of time by which the activity can be delayed without delaying the project completion date. That means total float refers to the amount of free time associated with an activity which can be used before, during or after the performance of the activity for the purpose of delaying the completion of the activity or extending the time consumption of the activity.

Total Float = Lf – Ef = Ls – Es = Lf – Es – Duration of the activity

Interfering Float + Free Float = Total Float

OR, Operations Management, Math, Network Analysis, PERT, CPM, Project Management, PERT Chart, Network Diagram, Total Float, Interfering Float, Slack, Float, Free Time, Critical Path, Activity, Event, Merge Event, Burst Event, Predecessor, Successor, Statistics, OM, Operations Management, MBA, MCA, CA, CS, CWA, BBA BCA, BCom, MCom, GRE, GMAT, Grade 11, Grade 12, Class 11, Class 12, IAS, CAIIB, FIII, IBPS, BANK PO, UPSC, CPA, CMA

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