Match Mapplets
A match mapplet is a type of mapplet that you can create and embed in Match transformations.
You create match mapplets by saving the configuration of a Match transformation as a match mapplet. When you create a match mapplet, you convert Match transformation settings into Comparison and Weighted Average transformations.
After you create a match mapplet, you can add transformations to customize the match analysis. For example, you can add an Expression transformation to evaluate the link scores of two strategies and choose the highest score.
Unlike Match transformations, match mapplets are passive, which means that you can use them as rules within the Analyst tool. Use match mapplets in the Analyst tool to match records as part of data profiling processes.
The Match transformation can only read match mapplets that you create from within a Match transformation.
Creating a Match Mapplet
Create a match mapplet to define a match analysis operation that uses multiple transformations.
1. Open a Match transformation in the editor and select the Strategies view.
2. Select Use Match Rule.
3. In the Name field, select Create new.
The New Mapplet window opens.
4. In the New Mapplet window, enter a name for the mapplet and choose a location to save the mapplet.
5. Optionally, select Reuse Strategies from the Match transformation to copy the inputs, strategies, and weights from the current Match transformation to the match mapplet.
6. Click Finish.
The match mapplet opens in the editor.
7. Optionally, create match operations by adding and configuring Comparison transformations and Weighted Average transformations in the match mapplet.
8. Click File > Save to save the mapplet.
9. Close the mapplet and select the editor that contains the Match transformation. Verify that the mapplet you created appears in the Name field.
10. Optionally, configure the match fields in the mapplet by clicking the Match Fields button.
The Configure Match Rule window opens.
11. Double-click the fields in the Input Fields and Available Inputs columns to assign input ports to match inputs.
12. Click File > Save to save the transformation.
Using a Match Mapplet
You can select and configure a previously defined match mapplet in the Match transformation.
1. Open a Match transformation in the editor and select the Strategies view.
2. Select Use Match Rule.
3. In the Name field, select Use Existing.
The Configure Match Rule window opens.
4. Click Browse to locate a match mapplet in the repository.
Important: You can only select mapplets created by the Match transformation.
The Select Match Mapplet window opens.
5. Select a match mapplet and click OK.
6. Double-click the fields in the Input Fields and Available Inputs columns to assign input ports to match inputs.
7. Click OK.
The Configure Match Rule window closes.
8. Click File > Save to save the Match transformation.