Exercise 10

Schwalbe P.420 - Chapter 10, Ex 3

How many different communications channels does a project team with six people have? How many more communications channels would there be if the team grew to ten people?

Number of communications channels = n(n-1)/2

6 people in the team:
6(6-1)/2
= 15 channels

10 people in the team:
10(10-1)/2
= 45 channels

Difference between the two:
45 - 15 channels
= 30 channels

Therefore there are 30 more channels in a team of 10 in comparison to a team of 6.

Reference
Schwalbe, K. (2006). Information Technology Project Management (4th ed.). Massachusetts: Thomson Course Technology.