Start to Finish Relationship

The explanation given by PMBOK5 is as follows:

A logical relationship in which a successor activity cannot finish until a predecessor
activity has started.

Example: The first security guard shift (successor) cannot finish until the second
security guard shift (predecessor) starts.

Counter Example:

Imagine you have to do a 2 days of Treatment on the wall which should finish 24 hours before starting painting. Here Painting – although happening later – is the Predecessor (main activity and Treatment is the Successor (Secondary) activity. In this example, the successor activity will finish 24 hours before the Predecessor activity starts. So PMBOK5 explanation is incorrect.

My Interpretation:

In SF relationship, the start of Predecessor (main) activity, DECIDES the finishing of Successor (secondary) activity, with a suitable lead or lag as required.

Does anyone agree with this definition?

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s