Total Float and variance

Total Float will reflect when your end date will be impacted 0 = Critical - = Dealyed based on your logice. With other word with how much can this activity move before it impacts your completion date based on the logic.

Float is calculated based on the critical Path

Variance early finish is the amount of days this activity has moved in comparison with your target schedule.

In Short

Total Float (How much an activity can move base on logic)
Variance Early Finish (How much an activity has moved compared to target)

I hope this assist.


Cheers

Thank you Jaco.
So I feel that I am resonably right in assuming that variance will give a more correct picture of delay when u summarise the set of activities for a location or level.
I would definitely look forward to any comments on this.

sooraj

Sooraj it all depends on your definition of a delay

Jaco
Interesting point there.
Where an activity has moved [later] from its planned time it is in fact delayed and may have a string of consequential delays to following activities, the same applies if an activity takes longer than planned. There is a delay effect. The matter of float is a secondary issue.
If the delay is due to someone elses default and you incur additional cost due to it and the contract or insurance allows you to recover your costs etc then demonstrating these delays and consequential effects could be important.

If the activity is also on the critical path to completion or an interim LD completion date the delay can entitle you to an EOT on the contract date.

Similarly, but conversley, a critical path delay may entitle you to an EOT , but it does not necessarily give you recovery of costs, it merely gives you relief from LD’s.
Thus tracking the non critical activities following a delay event can be more important [for cost recovery] than focussing on criticality.
JK

Take note that a variance may be positive or negative. It does not always means that movement would mean a delay, it may be the other way around.

Total float is define as the number of days you can delay a project without affecting your completion date.

Regards,
Daniel