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Now that we've talked about the relationship between activities we can get in and begin creating a network

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diagram so to create a network diagram we're talking about visualizing the project work we're talking

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about the flow of the project work.

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So we're showing the relationship of our work activities and how the project flows from the start to

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the end the only type of network diagram you need to know where your exam is called activity on Node

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8.

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In like in this little picture here activity see Indiani That's an activity.

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And so the arrows just show the flow.

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The nodes are where all the information is about the activity.

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What we use and what you'll be using and Eithan over here exam is called the precedence diagramming

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method the precedence diagramming method is like we saw with with our relationship between activities

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we have successors and predecessors.

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So predecessors are upstream successors or downstream.

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It's the most common it's what Microsoft Project uses.

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If you were to draw out the flow of your work like you start here and you end up here in the flow of

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all your activities you'll be using PTM.

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So what's the predecessor and a successor each activity can be a predecessor and a successor.

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So you can have an activity to prime the wall.

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While this could be a successor to install the drywall you have to put the drywall up first then you

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can prime the wall so it succeeds the drywall.

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What after this.

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Any activity after this would succeed this guy.

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So this could be paint the wall.

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So paint the wall is now a successor and this guy in this instance is a predecessor so don't let that.

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Don't let that tricky.

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That it can only be one or the other.

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So an activity could be both because you could have predecessors and successors.

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The activities are put in little square.

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These are the nodes.

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You might sometimes see them in a circle but squares are the most common.

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And then the arrows that you'll see in this.

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Let's take a look now the arrows that you see or the connection of the lines that you see are just show

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the flow of the work.

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So sometimes you don't see an arrow and other times you will don't let that trick you it's just the

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flow of the work the the lines show how the work flows.

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So in this example we're seeing these different nodes and we're seeing a lot of different numbers.

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So we're moving closer to a scheduled network analysis.

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I know that's what a lot of you are eager to see but this is our six our sample network diagram.

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This is a schedule model of how do we go from the start all the way to the end.

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And so we'll see this in more detail we're getting there.

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We're going to figure out how do we find float.

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This is how we do.

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This is what we base it on is you have to have a network diagram to examine.

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So hang tight.

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We're getting there.

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It's coming.

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Network templates just like our activity list.

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There's no reason to start from scratch every time.

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So if I have a similar project let's just adapt it.

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If you always have the same flow of works or nearly the same flow of work you can have a pre-populated

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network diagram that you just adapt.

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So again this is an organizational process asset.

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Keep moving forward.