Table of Contents


  1. Introduction
  2. Configuring Hub Console Tools
  3. Building the Data Model
  4. Configuring the Data Flow
  5. Executing Informatica MDM Hub Processes
  6. Configuring Application Access
  7. MDM Hub Properties
  8. Viewing Configuration Details
  9. Search with Solr
  10. Row-level Locking
  11. MDM Hub Logging
  12. Table Partitioning
  13. Collecting MDM Environment Information with the Product Usage Toolkit
  14. Glossary

Trust Properties

Trust Properties

This section describes the trust properties that you can configure for trust-enabled columns.
Trust properties are configured separately for each source system that could provide records for trust-enabled columns in a base object.

Maximum Trust

The maximum trust (starting trust) is the trust level that a data value will have if it has just been changed. For example, if source system X changes a phone number field from 555-1234 to 555-4321, the new value will be given system X’s maximum trust level for the phone number field. By setting the maximum trust level relatively high, you can ensure that changes in the source systems will usually be applied to the base object.

Minimum Trust

The minimum trust is the trust level that a data value will have when it is old (after the decay period has elapsed). This value must be less than or equal to the maximum trust.
If the maximum and minimum trust are equal, then the decay curve is a flat line and the decay period and decay type have no effect.


Specifies the units used in calculating the decay period—day, week, month, quarter, or year.


Specifies the number (of days, weeks, months, quarters, or years) used in calculating the decay period.
For the best graph view, limit the decay period you specify to between 1 and 100.

Graph Type

Decay follows a pattern in which the trust level decreases during the decay period. The graph types show these decay patterns have any of the following settings.
Graph Type
Simplest decay. Decay follows a straight line from the maximum trust to the minimum trust.
Rapid Initial Slow Later (RISL)
Most of the decrease occurs toward the beginning of the decay period. Decay follows a concave curve. If a source system has this graph type, then a new value from the system will probably be trusted, but this value will soon become much more likely to be overridden.
Slow Initial Rapid Later (SIRL)
Most of the decrease occurs toward the end of the decay period. Decay follows a convex curve. If a source system has this graph type, it will be relatively unlikely for any other system to override the value that it sets until the value is near the end of its decay period.

Test Offset Date

By default, the start date for trust decay shown in the Trust Decay Graph is the current system date. To see the impact of trust decay based on a different start date for a given source system, specify a different test offset date.


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