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You can create a derived skill from any skill in the Skill Catalog, including built-in and read-only skills. To create a derived skill, do one of the following:
  • Select a skill in the Skill Catalog and click the derive skill icon.
  • Double-click the name of a skill in the Skill Catalog and in the dialog box that opens, click Create and Edit Derived Skill.
To see the base skill of a derived skill, click the settings button next to the name of the derived skill.

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Base skill activity

When a derived skill is created, an activity referencing its base skill is added at the beginning of the document processing flow. This activity is named Base: <Base Skill Name> and cannot be edited or deleted.
To test other activities in isolation, exclude the Base: <Base Skill Name> activity from the document processing flow by redirecting its incoming arrow to a different activity. If you’re not satisfied with the derived skill after testing, consider creating a custom skill from scratch.

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Fast Learning activity

A Fast Learning activity is also added immediately after the Base: <Base Skill Name> activity. You can modify this activity as follows: enable or disable fields, add new fields, or train the activity. If needed, you can delete this activity; in this case, the skill will no longer be trainable. For more information about the Fast Learning activity, see Setting up a Fast Learning activity. When updating a derived skill to the new version of its base skill, the Fast Learning activity does not change. This preserves the training results on custom examples in the derived skill.

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Add activities

You can also add other activities to the document processing flow at any position before or after the Base: <Base Skill Name> activity. For example, you can add an Address Parsing activity to break down full addresses extracted by the base skill.