Wednesday, March 9, 2011

IF YOU LIKED THAT...

My last post explained how to determine communication channels. Well if you liked that, you are going to love this. It's like having an "ace up your sleeve". You may recall that the problem I presented was:

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? Be careful, the key word is additional.

You can use the formula I shared with you yesterday to solve this problem but here's a faster way to solve it. Whenever a new member is added to the project team the number of additional communication channels is equal to the number of existing team members. That's it. 

In this example, there are 5 existing team members so when you add a new member, additional channels will be 5. Isn't that wonderful, no math was required. Trust me it works.  Try a few using the formula [N*(N-1)]/2 and compare answers.  This can be a time saver when taking the exam. 

Let's go one step further. If the question states that two new members are added merely add the new team members one at a time and using the same technique as above.

Here’s how it works:

1.)    If project has 5 members, and you add one more, the number of additional communication channels is 5.
2.)    Now the number of team members becomes 6.
3.)    If you add an additional team member, the communication channels becomes 6.
4.)    Therefore, if two new members are added, the number of channels increases by 11 (5 + 6 = 11). 

How about that? Why even a fifth grader can do this...

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