"What we've got here is failure to communicate." That famous quote from the movie Cool Hand Luke haunts me whenever I teach a class. There's always something that you wish you had included or taught differently. Well communication channels (how fitting) is a subject that I did not cover to my satisfaction. You will find excellent treatment of it in the John Phillips book titled "ALL-IN-ONE, CAPM/PMP Project Management Certification Exam Guide" Chapter 10. and on the video that comes with the book (Chapter Ten Video - Communications Management).
Test Question Example:
You have 5 members on a project team. One more member is added to the team. How many additional communication channels are added to the project?
a. 1
b. 3
c. 5
d. 7
You can solve this question by calculating the difference in the number of communication channels "before" and "after" adding the new member, using the formula [N*(N-1)]/2.
Communication Channels "before" = [5*(5-1)]/2 = 10
Communication Channels "after" = [6*(6-1)]/2 = 15
Increase in communication channels = 15 - 10 = 5
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