Tag: PMP

Calculating Communications Channels In A Project

November 14th, 2018   •   no comments   

You have five people working for you on the project and need to add two more.  You realize that this will add a higher level of complexity for communicating things as well as increase gossip.  You didn’t realize that the two new people would add _____ more channels of communication to monitor.

a.  13

b.  10

c.  28

d.  15

This is a common question on the exam and it is PMI’s way of suggesting that you should understand how communication needs increase dramatically each time a new person is added to the mix.  Two new people being added to an already existing team of 6 (yes, you have to add the PM in there) does not mean just a few new channels.  In this case, you have to use the communications formula {n(n-1)}/2 where n is the number of people, to calculate what the old number of channels was (15) and the new number (28) and then subtract.

Answer is “a”

Schedule Compression

November 14th, 2018   •   no comments   

The project is running behind schedule and it looks like a key delivery date might be missed if things continue as they are.  As PM, you realize that something has to be done and your first action should involve:

a.  reviewing schedule lags to see if they can be shortened.

b.  reviewing critical path activities to see if certain activities can be done sooner.

c.  reviewing mandatory dependencies to see if they can be broken.

d.  reviewing discretionary dependencies to see if they can be done sooner.

Lags are essentially waiting time that is forced upon the project because of conditions that can’t be changed (e.g. cement curing).  Not much can be done there.  Mandatory dependencies are just that – mandatory – which means you can’t move things around because they have to go in that order.  One would think that your critical path is fairly fixed as well.  Discretionary dependencies (or “soft logic”) are decisions that were made based on best practices or your thinking that they had to go that way.  They are the first place to start looking for possible time savings by moving things up or doing them at the same time.

Answer is “d.”