# Viewing the subset creation steps

The **Subset Steps** tab outlines the steps that Tonic Structural uses to create the subset based on the current configuration.

![Subset Steps tab on the Subsetting view](https://3378426797-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LSQCLFQ4bslJ-HYc8c3%2Fuploads%2FhZjKOofxZJvyMTROJoiw%2FSubsettingStepsFullPage.png?alt=media\&token=6bd250bd-54a3-49cc-aa91-8c541248d03d)

The steps include the processing of the target, lookup, and related tables. However, the list is not necessarily a one-to-one correspondence with the in-subset tables. To satisfy referential integrity, a table might appear in multiple steps.

The steps do not include the out-of-subset tables.

Each step includes:

<table data-header-hidden><thead><tr><th width="319.5707754041276" valign="top"></th><th valign="top"></th><th data-hidden></th></tr></thead><tbody><tr><td valign="top"><strong>Action Step</strong> and <strong>Table Name</strong></td><td valign="top">Identifies the table, and indicates whether the table is a target table or a lookup table.</td><td></td></tr><tr><td valign="top"><strong>Status</strong></td><td valign="top">For target tables and lookup tables, <strong>Status</strong> is <strong>Direct</strong>. This indicates that the subsetting process pulls data directly from the table.<br><br>For target tables, this is based on the percentage or <code>WHERE</code> clause.<br><br>For lookup tables, the subsetting process copies the entire table.<br><br>For related tables, the status is either <strong>Downstream</strong> or <strong>Upstream</strong>.</td><td></td></tr><tr><td valign="top"><strong>Contributing Tables</strong></td><td valign="top">For related tables, the <strong>Contributing Tables</strong> column indicates the number of tables that affect the data that Structural pulls from the table.<br><br>To display the contributing tables and how the current table is affected by those tables, click the information icon.</td><td></td></tr><tr><td valign="top"><strong>Source/Destination Rows</strong></td><td valign="top">The number of rows in the source data and in the subset. For tables that contain fewer than 1,000 rows, the pre-subset value is <strong>&#x3C;1k</strong>.<br><br>Before you run the data generation, the number of rows in the subset is unknown.<br><br>Otherwise, the number reflects the results of the most recent data generation.</td><td></td></tr></tbody></table>


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