(syn: quality attribute utility tree). A hierarchical model to describe product quality: The root “quality” is hierarchically refined in areas or topics, which itself are refined again. Quality scenarios form the leaves of these tree.

  • Standards for product quality, like ISO 25010, propose generic quality trees. You find this generic quality tree in question C-1-2 (quality goals).
  • The quality of a specific system can be described by a specific quality tree (see the example below).

Sample Quality Tree

See also