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Using ArcMap 10.3, I am trying to create a model that takes an input dataset and runs it through multiple geoprocessing tools. I have read everything from ESRI and online I can find, I just can't wrap my head around this for some reason. I do not see how their examples create new outputs everytime they are run. ESRI just shows pictures and doesn't have any workflows to set up inline variables. I think this is what I need to use.

If someone can please explain how to set up model builder, so the output feature doesn't have to be explicitly defined when setting up the model, I would be thankful. It always asks me to set the output feature class, but then my model is designed to work on only one specific input, defeating the purpose.

I want to set it up so that it takes an input from event polygon, does the selection and creates an output that is a variable that can be passed along. Then repeats this til model is done. Do you have to create the variable first and then point the output to there?

I don't understand when using the %variable% how it knows what to write the output to.

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    Right click on input or output and pick 'parameter'. – FelixIP Aug 12 '18 at 21:40

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