Recoding Masks - trillium_discovery - trillium_quality - Latest

Trillium Control Center

Product type
Software
Portfolio
Verify
Product family
Trillium
Product
Trillium > Trillium Discovery
Version
Latest
Language
English
Product name
Trillium Quality and Discovery
Title
Trillium Control Center
Copyright
2024
First publish date
2008
Last updated
2024-10-18
Published on
2024-10-18T15:02:04.502478

A mask describes the shape of a data value based on a pattern of alphabetic and numeric characters. In certain cases, the mask can also include special characters and spaces. A mask recode is a user-defined revision or recoding of a mask shape which modifies or replaces the original mask with a new mask.

Recoded masks are useful, for example, if you are standardizing the way your company enters phone numbers into a database or the way you enter data for customer addresses and postal codes. With mask recoding you can apply global changes to data formats and structures, and be assured that the resulting data values are consistent in their format and presentation. The Quality Transformer process can use tables of recoded masks to standardize and clean data.

Each record in a recode table contains two columns:

  • original mask
  • new mask

To recode masks

  1. In the Navigation View, click the Discover bar, and click the Entities tab.
  2. Expand the entity that contains the attribute with which you want to work.
  3. Right-click the attribute and select Drill down to metadata. (You can also open the attribute's Summary Data View, and click Attribute Metadata.)

    The List View of attribute metadata displays.

  4. Double-click the row of Masks metadata.

    The Masks List View displays.

  5. Select rows that contain the masks you want to recode.
  6. Right-click the selection and select Recode Masks.

    The Recode Masks window opens, displaying a list of masks selected for recode.

  7. Specify the new mask to use for the recode.
  8. Click OK.

    Two new columns are added to the attribute's metadata:

    • Recoding Mask. Recodes for masks display. If the mask has not been recoded, the original mask is shown.
    • Mask Recoded? If the mask shown in the Recoded Mask column is a recode, this column will display Yes, otherwise the value is blank.
    Note: To export mask recode look-up tables to use in the Quality Transformer process, see Generating Recode Mask Look-Up Tables.