Server Administration > Item Fields > Creating Fields > Setting Field Relevance
  
Setting Field Relevance
Relevance is a set of field conditions that determine which fields are relevant to selected groups of users or to specified field values. Fields that do not meet the relevance rules are not visible to users in the associated views; for example: Items View, Items Details View, Item Relationships View, and Queries View.
You can define specific conditions that make a field relevant to selected groups of users or items with field values. Fields that do not meet relevance rules are not visible to users. Relevance rules allow you to create subsets of information that make it easier for users to create and edit items.
Relevance uses logical conditions based on user groups and field values to make up a rule. These rules apply item by item and not by type definition.
If you create a dynamic group related to a specific project, you can also choose to make a field relevant only to members of that group.
Relevance is not a security mechanism for controlling access to information in Windchill RV&S. For purposes of security, Windchill RV&S includes project, type, and field visibility rules to control user access to information.
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Relevance rules are evaluated on the Windchill RV&S client’s time zone.