Using Derived Metadata Rules - trillium_discovery - trillium_quality - 17.1

Trillium Control Center

Product type
Software
Portfolio
Verify
Product family
Trillium
Product
Trillium > Trillium Discovery
Trillium > Trillium Quality
Version
17.1
Language
English
Product name
Trillium Quality and Discovery
Title
Trillium Control Center
Topic type
Administration
Overview
How Do I
Configuration
Reference
Installation
First publish date
2008

Derived metadata rules are statistics (such as metaphones and patterns) generated for all attributes when data is imported or when you analyze derived metadata rule statistics as a part of modifying an attribute's properties.

The following table describes the derived metadata rules:

Derived Metadata Rule

Description

Name

Name of the attribute

Ref

Internal reference number, unique within the entity

Business Description

User-defined description of the attribute

Joins Analysis

Notes if the attribute is included in a join analysis

Create Index

Notes if an index for the attribute has been created or if analysis is pending

Metaphone

Notes the state of the last metaphone analysis

Pattern

Notes the state of the last pattern analysis

Soundex

Notes the state of the last soundex analysis

Mask

Notes the state of the last mask analysis

Phrase

Notes the state of the last phrase analysis. If blank, no phrase analysis has run.

Percentile Notes the state of the last percentile analysis.
Standard Deviation Notes the state of the last standard deviation analysis.

Viewing and Analyzing Derived Metadata Rules

You can open List Views of derived metadata rule details for single attributes or for all attributes in an entity. From this view you can modify the derived metadata and run an analysis of pending derived metadata.

To view derived metadata for a single attribute

  1. Do one of the following:
    • In Navigation View, right-click an attribute and select Drill down to derived metadata rules.
    • In the Summary Data View for an attribute, click Derived Metadata Rules from any tab.

    The Derived Metadata Rules List View for the attribute displays.

  2. To make changes to the derived metadata, right-click the attribute and select Edit attribute or edit selected attributes. For more information, see Modifying Attribute Properties.
To view derived metadata for all attributes in an entity
  1. From Navigation View, right-click an entity and select Drill down to derived metadata rules.

    The Derived Metadata Rules List View of all attributes for the entity displays.

  2. To make changes to the derived metadata of one, multiple, or all attributes, highlight the attributes, right-click, and select Edit selected attributes. For more information, see Modifying Attribute Properties.
To analyze pending derived metadata rules
  1. In a Derived Metadata Rules List View, right-click one or more attributes and select Analyze pending derived metadata rules.
  2. Click Now to start the analysis or Later to schedule it for another date and time.