公部門生産力的評估，乃是振組織績效之重要工具，也唯有組織成員具有生産力的概念，並進一步擴大為績效意識，政府才能以簡御繁，並舒緩龐大財政赤字的壓力。本文試從理論層面（評估理論、組織理論、管理理論，可更廣義方法論），擴充現行生産力評估過於狹隘的理論基調。是以援引M. Q. Patton的「效用導向」(utilization-focused)評估觀點下，本文乃論證典型生産力評估所過於著重的總結性(summative)、目標導向的(goal-oriented)評估缺失；相形下，遂可能忽略形成性(formative)、非目標導向的(goal-free oriented)之價值。倘能從理論的角度，來闡明與拓展評估的本質，則提升生産力評估之效用，自屬可期。 The productivity evaluation in public sectors is an vital instrument for enhancing organizational performance. If people who works for government with the concept of productivity, and further regarded it as the concept of performance, the government could control the whole affairs more efficiently. By means of M.Q. Patton's point of view, utilization-focused, the article is testified the weakness of typical productivity evaluation, which is more emphasis on summative, goal-oriented perspectives. Therefore, the typical productivity evaluation might overlook the value of formative and goal-free oriented perspectives. If we can analyze productivity from theoretical perspectives and elucidate the essence of evaluation, we can expect the utilization of productivity evaluation will be enhanced.