The current tagging mechanism in CA Unified Infrastructure Management does not extend to devices that do not have robots installed locally. The user_tag1 and user_tag2 fields are a great why to create dynamic groups in Unified Service Management relating configuration items to services or applications. There is no way to tag devices that do not have robots.
As a UIM user or administrator (implied ACL requirement) I want the ability (in all languages supported by the product) to view, add, modify, or delete tags on devices and configuration items (both programmatically and through the product UI), and allow (all) product grouping capability access to those tags for the purposes of filtering items to populate a group manually or to group items dynamically based on tag values.
This is required so that we can show in alarms and in USM what is impacted visually allowing the NOC to focus on the top tier business application / service alarms before the lower tier ones.
The real request is to make tagging in UIM as easy as tagging this idea.