spiff-arena/docs/Building_Diagrams/custom_process_metadata.md

Custom Process Metadata

This guide will walk you through the steps to create a process model that generates custom metadata using a metadata extraction path and how to query that metadata using process instance filtering.

Step 1: Define the Process Model

Create a New Process Model:

• Navigate to the "Processes" section in SpiffArena.
• Click on "Add a process model" and fill in the required fields as described elsewhere.
• In the process model form, specify the metadata extraction path.
  • This path is used to extract data from your process instances for quick access in searches and perspectives.
  • Example: If you have a script task that sets great_color = "blue", set both the extraction key and extraction path to great_color.
• Save the process model.

Step 2: Start the Process

1. Initiate the Process:

   • Navigate to the "Home" section and click on "Start New" to initiate the process.
   • Select the process model you created and start a new instance.

2. Monitor Process Execution:

   • Track the progress of the process instance to ensure it completes successfully and actually generates appropriate task data, such as great_color or whatever specific data you are looking for.

Step 3: Query Custom Metadata

1. Navigate to Process Instances:

   • Go to the "Process Instances" section to view all instances.

2. Expose a column for your Custom Metadata attribute:

   • Use the plus icon to add a column.
   • Select the metadata field you defined in the extraction path and click Save.
   • You should now be able to see your custom metadata as a new column in the process instance report.

3. View Filtered Results:

   • You can also filter process instances based on your custom column using the same column options.

By following these steps, you can create a process model that generates custom metadata and efficiently query that metadata using process instance filtering.