Now that we've talked about the relationship between activities we can get in and begin creating a network
diagram so to create a network diagram we're talking about visualizing the project work we're talking
about the flow of the project work.
So we're showing the relationship of our work activities and how the project flows from the start to
the end the only type of network diagram you need to know where your exam is called activity on Node
8.
In like in this little picture here activity see Indiani That's an activity.
And so the arrows just show the flow.
The nodes are where all the information is about the activity.
What we use and what you'll be using and Eithan over here exam is called the precedence diagramming
method the precedence diagramming method is like we saw with with our relationship between activities
we have successors and predecessors.
So predecessors are upstream successors or downstream.
It's the most common it's what Microsoft Project uses.
If you were to draw out the flow of your work like you start here and you end up here in the flow of
all your activities you'll be using PTM.
So what's the predecessor and a successor each activity can be a predecessor and a successor.
So you can have an activity to prime the wall.
While this could be a successor to install the drywall you have to put the drywall up first then you
can prime the wall so it succeeds the drywall.
What after this.
Any activity after this would succeed this guy.
So this could be paint the wall.
So paint the wall is now a successor and this guy in this instance is a predecessor so don't let that.
Don't let that tricky.
That it can only be one or the other.
So an activity could be both because you could have predecessors and successors.
The activities are put in little square.
These are the nodes.
You might sometimes see them in a circle but squares are the most common.
And then the arrows that you'll see in this.
Let's take a look now the arrows that you see or the connection of the lines that you see are just show
the flow of the work.
So sometimes you don't see an arrow and other times you will don't let that trick you it's just the
flow of the work the the lines show how the work flows.
So in this example we're seeing these different nodes and we're seeing a lot of different numbers.
So we're moving closer to a scheduled network analysis.
I know that's what a lot of you are eager to see but this is our six our sample network diagram.
This is a schedule model of how do we go from the start all the way to the end.
And so we'll see this in more detail we're getting there.
We're going to figure out how do we find float.
This is how we do.
This is what we base it on is you have to have a network diagram to examine.
So hang tight.
We're getting there.
It's coming.
Network templates just like our activity list.
There's no reason to start from scratch every time.
So if I have a similar project let's just adapt it.
If you always have the same flow of works or nearly the same flow of work you can have a pre-populated
network diagram that you just adapt.
So again this is an organizational process asset.
Keep moving forward.