Kost G J
Am J Clin Pathol. 1983 Mar;79(3):353-9. doi: 10.1093/ajcp/79.3.353.
Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT) are quantitative network planning strategies that facilitate management of projects with many interrelated activities. They determine the minimum time necessary to complete a project and identify which activities are critical to achieving the minimum. PERT also incorporates probabilistic estimates of activity durations. This statistical approach is useful when planning a project entailing some uncertainty and allows one to calculate chances of finishing on time. CPM and PERT encourage participation of all key personnel in the planning process, effective fit between project variables and organizational structure, and optimization of resource allocation. Availability of several levels of sophistication make network planning flexible enough to be applied easily in laboratory research and development. Iterative refinement of network plans and time estimates in progressive steps of involvement with clinical colleagues augments the effectiveness of these technics in hospital settings.
关键路径法（CPM）和计划评审技术（PERT）是定量网络规划策略，有助于管理具有许多相互关联活动的项目。它们确定完成一个项目所需的最短时间，并识别哪些活动对于实现最短时间至关重要。PERT还纳入了活动持续时间的概率估计。这种统计方法在规划存在一定不确定性的项目时很有用，并且可以让人计算按时完成的概率。CPM和PERT鼓励所有关键人员参与规划过程，使项目变量与组织结构有效匹配，并优化资源分配。多种复杂程度的可用性使网络规划足够灵活，能够轻松应用于实验室研发。在与临床同事逐步参与的过程中，对网络计划和时间估计进行迭代优化，可增强这些技术在医院环境中的有效性。
