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Advanced Management Accounting

Piyush Shirodkar (CA Final Student) (1358 Points)

08 September 2018

In Critical Path Method chapter, how to find slack of head event and tail events?

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8 Replies

Viswa (Student) (64 Points)
Replied 08 September 2018

You can not have Slack for an Event
Slack is only for an Activity

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Piyush Shirodkar (CA Final Student) (1358 Points)
Replied 09 September 2018

okay then how to calculate slack of an activity?

Viswa (Student) (64 Points)
Replied 09 September 2018

L - E of Head Event to be considered in Free Float
L-E of Tail Event in case of Independent Float

Piyush Shirodkar (CA Final Student) (1358 Points)
Replied 09 September 2018

But how to calculate then that's my query.
I didn't ask you about free float and independent float

Viswa (Student) (64 Points)
Replied 09 September 2018

Do you know how to calculate L and E?

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Piyush Shirodkar (CA Final Student) (1358 Points)
Replied 09 September 2018

Yes I know that. Just wanted to know how to calculate slack of head and tail events.
And even now you agreed that slack is for an event and not for activity.
Is it the difference between L and E?

Viswa (Student) (64 Points)
Replied 09 September 2018

I mean Slack you calculate for events but if you go conceptually it is for activity

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sachin (sachin) (415 Points)
Replied 09 September 2018

Slack is the difference (irrespective of negative/positive difference) between E and L at any node. Considering an activity, head event slack is a slack at the end of the activity (slack at the node where the arrow ends) and tail event slack is the opposite (slack at the node where the arrow starts).
You may also note that slack at all nodes of a critical path wud always be zero.

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