---
title: "Metric Tutorial Chapter 4 - Performing Analysis"
canonical: "https://help.innovyze.com/space/infodrainage2020v2/16416976/Metric%20Tutorial%20Chapter%204%20-%20Performing%20Analysis"
format: markdown
---
| **File/s needed: ** |
| --- |
| Click to download the [**Metric Tutorial Model files**](https://help-innovyze.atlassian.net/wiki/download/attachments/16417714/ID2020.2_Metric_tutorial_files.zip?version=1&modificationDate=1614652343000&api=v2). |


1. Continue working on your previous file or open **Pipe Design.iddx**.
2. Save it to filename **Analysis.iddx.**
3. The purpose of this exercise is to assess whether the model floods during a 1:30 year storm. From the **Rainfall/Pollutants** ribbon, click the **Rainfall Manager **button.  
> Macro (inline-media-image)
4. Select **My FSR** in **Rainfall Manager Items**, and then click the **Return Periods** tab and untick the 1:1 and 1:100 year storms.> Macro (inline-media-image)
5. Click **OK**.
6. From the **Analysis** ribbon, click the **Analysis Criteria **button. Make sure the **All** and **My FSR** boxes are selected. There should be 18 storms. Make sure that the **Junction Flood Risk Margin** is set to **300 mm**.> Macro (inline-media-image)
7. Click **OK**.
8. In the **Analysis** ribbon, click **Validate**. This will report any issues with the model. Click **OK**.> Macro (inline-media-image)

> Macro (inline-media-image)
9. Click the **Go** button to start the simulation. Once the simulation is completed, the **Connections Summary** table automatically opens.> Macro (inline-media-image)
10. Click the **Critical Storm** button on the **Connections Summary** dialog to show the worst case storm for all storms run. We can see that a few of the pipes are surcharged and there is some flooding. We will revisit this after we have added storage to the network.> Macro (inline-media-image)
11. Go to the **File** ribbon and select **Save** to save your work.