---
id: FEAT-PFM-ELG-01
title: Rule Library
product_area: platform
module: eligibility
revision: 1
status: draft
product_intent: confirmed
source_sha:
  services-platform: ad3f6a6582843008ed0f5a17b131878d15829af1
  react-console: baf6dae382d6f41dce976c7f848667ccc37e076f
supersedes:
  - react-console acceptance inventory area DEF
  - react-console acceptance inventory area GOV
  - react-console acceptance inventory area REG
purpose: >-
  This feature groups the authoring, discovery, trial, release and retirement of
  reusable qualification expressions, together with the vocabulary applications
  declare.
outcomes:
  - Applications share readable qualification definitions.
  - 'Version history supports attributable changes, comparison and restoration.'
concepts:
  - CON-PFM-ELG-001
actors:
  - ACT-PFM-023
  - ACT-PFM-013
  - ACT-PFM-024
acceptance: FAS-PFM-ELG-01
capabilities:
  - CAP-PFM-ELG-001
  - CAP-PFM-ELG-002
  - CAP-PFM-ELG-003
  - CAP-PFM-ELG-004
  - CAP-PFM-ELG-005
  - CAP-PFM-ELG-006
journeys:
  - JNY-PFM-ELG-001
acceptance_suite: FAS-PFM-ELG-01
---
# Rule Library

## Purpose

This feature groups the authoring, discovery, trial, release and retirement of reusable qualification expressions, together with the vocabulary applications declare.