Decisions about whether or not to approve a project plan for execution are critical. A decision to continue with a
bad plan may lead to a failed project, whereas requesting unnecessary additional planning for an already highquality
plan may be counterproductive. However, these decisions can be influenced by psychological biases,
such as the endowment effect, optimismbias and ambiguity effect,which are enhanced when uncertainty is substantial
and information incomplete. As a result, a non-biasedmodel for evaluating the quality of project planning
is important to improve planning approval decisions and resource allocation. This paper introduces a novel artifact
(QPLAN) that evaluates and improves planning quality, and a case study to demonstrate its effectiveness
within a business environment.