--- title: "SPC:Perspective:GUI:Create Sample Definition" id: "spc-perspective-gui-create-sample-definition" project: "Tutorials" url: "https://docs.sepasoft.com/articles/mes-module-tutorials/spc-perspective-gui-create-sample-definition" updated: 2026-07-23T18:14:05Z --- # SPC:Perspective:GUI:Create Sample Definition ## Create Sample Definition | Defining Data Collection Parameters Let's create a **Sample Definition** with three **Sample Attributes**, using the **SPC Sample Definition Manager** window we created on the previous page. We'll utilize it in an upcoming section, to collect some sample data values. * * * ### Create a Sample Definition Class * Launch a client to the Sample Definition page previously created, click ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04.png)in the toolbar of the SPC Sample Definition Manager component. * Click **Add Sample Definition Class** > **Set As Standalone Class** ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-1.png) * Name it ***SPC Tutorial Samples*** and click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-2.png)**. The new Sample Definition Class will be at the top of your hierarchy tree, as shown. ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-3.png) ### Create a Sample Definition * With the new Sample Definition Class highlighted, click ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04.png)and **Add Sample Definition --> Make Selected Definition Class The Parent** ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-4.png) Define the Sample: Within the new class, add a new Sample Definition. Name it Dimension Sample A, set its Interval Type to Every Value Change—which is ideal for manual data entry workflows where samples are generated on-demand rather than at fixed time intervals—and enable the Auto Approve property. * Name: ***Dimension Sample A*** * Interval Type: ***Every Value Change*** * Auto Approve: ***true*** * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**. The new Sample Definition will be a child element to ***SPC Tutorial Samples.*** *![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-6.png)* ### Create Sample Attributes * With ***Dimension Sample A*** highlighted, click **Sample** **Attributes**in the **Selected Definition**section. * Click **Add ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-7.png)**to create a new **Attribute**. * Enter the following properties:  * Name: ***LocationX*** * Datatype: ***Real*** * ChartType: ***Individual*** * Sample Size: ***1*** * MaximumValue: ***100.0*** * Format: ***#0.00*** * Unit: ***mm*** * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**. The new Attribute will be visible in the list. * Repeat steps 2-3 above to create the remaining two attributes, ***LocationY*** and ***Diameter*** with the same properties. | Name | Datatype | ChartType | Sample Size | MaximumValue | Format | Unit | | --- | --- | --- | --- | --- | --- | --- | | LocationX | Real | Individual | 1 | 100.0 | #0.00 | mm | | LocationY | Real | Individual | 1 | 100.0 | #0.00 | mm | | Diameter | Real | Individual | 1 | 100.0 | #0.00 | mm | You should end up with three Sample Attributes in the list. ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-8.png) * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**to save and exit editing Attributes. * * * ### Assign Location * With ***Dimension Sample A*** highlighted, select **Location** in the **Selected Definitions** section. * Click to place a checkmark to the left of ***Test Location*** under **Line 1**. This assigns the Location to to Sample. * Enter the following properties under **Location Settings**on the right:  * Interval Type: ***Every Value Change** (should already be set)* * Auto Approve: ***t******rue*** (should already be true) ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-9.png) * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**to save and exit editing Locations. * * * ### Assign Rules Finally, link the sample definition to the production model and establish its analytical rules. * With ***Dimension Sample A*** highlighted, click **Rules** in the **Selected Definition** section. * Click the checkbox next to ***Individual Nelson Rule 3*** to select it. ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-10.png) * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**to save and exit editing Rules. ### Assign Control Limits * With ***Dimension Sample A*** highlighted, click **Control Limits** in the **Selected Definition** section. * Click the checkboxes next to ***Individual LCL*** and ***Individual UCL*** to select them. ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-11.png) * Click **Save ![](/resources/Storage/mes-module-tutorials/spc-perspective-gui-create-sample-definition/spc-perspective-gui-create-sample-definition-2025-08-04-5.png)**to save and exit editing Control Limits. Now that the data structure is fully defined, the next step is to build the user interface for operators to enter this data. [Next](/articles/mes-module-tutorials/spc-perspective-gui-configure-manual-sample-collection)