Planning and Scheduling Based on an Explicit Representation of the State of the Design
Planning and Scheduling Based on an Explicit Representation of the State of the Design
复制标题
基于设计状态的明确表示的规划和调度
DOI：
10.1115/detc2002/dtm-34008
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
P. Clarkson
中科院分区：
文献类型：
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作者：
Andres Melo;P. Clarkson
本文介绍了一种计算模型，提供了规划信息，用于调度设计过程。该模型旨在减少设计过程中的不确定性以及返工的风险。有人认为，规划所关心的是选择之间的替代行动和行动序列，而不是资源分配。该规划模型是基于一个明确的表示的状态的设计过程中，定义的设计能力作为一个池的任务，并在生成和选择的计划，通过评估其可靠性。经典的决策理论用于评估计划：一个状态行动网络的建立和分析作为一个马尔可夫决策过程。该模型根据合格的任务依赖关系生成计划。这些计划可用作手动和自动调度的基础。在一个工业实例研究中，预计返工减少30%以上。Copyright © 2002 by ASME
This paper describes a computational model that provides planning information useful for scheduling the design process. The model aims to reduce uncertainty in the design process and with it the risk of rework. The view is taken that planning is concerned with choosing between alternative actions and action sequences, but not with resource allocation. The planning model is based on an explicit representation of the state of the design process, the definition of the design capabilities as a pool of tasks, and on the generation and selection of plans by evaluating their reliability. Classical decision theory is used for evaluating the plans: a state-action net is built and analyzed as a Markov decision process. The model produces plans based on qualified task dependencies. These plans can be used as a basis for manual and automated scheduling. In an example industrial case study, a reduction of over 30% in the expected rework was predicted.Copyright © 2002 by ASME