10. Explain the following, and their relationships: ES, EF, LS, LF 11. What are the three variabl...

Question

Question

10. Explain the following, and their relationships: ES, EF, LS, LF 11. What are the three variables taken into account when u

Answer 1

Answer #1

(10)

ES : earliest time and activity can start

EF : earliest start an activity time

LS : latest time an activity can cast without delaying critical path

LF : latest start and finish time

Relationships:

EF = ES + Dur - 1

ES = EF of prev (largest) + 1

LF = LS of succ (smallest) - 1

LS = LF - Dur + 1

Float = LS - ES = LF - EF

(11)

a = optimistic time estimates

m = most likely time estimate

b = Pessimistic time estimate

Answer 2

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