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| Author: | Bell, C. E. |
| Title: | Maintaining project networks in automated artificial intelligence planning. |
| Journal: | Management Science
1989 : OCT, VOL. 35:10, p. 1192-1214 |
| Index terms: | ARTIFICIAL INTELLIGENCE PROJECT PLANNING NETWORKS |
| Language: | eng |
| Abstract: | Artificial intelligence (AI) automated plan synthesis programs typically represent plans as a partially ordered network whose nodes are instant in time and whose arcs are precedence constraints. Such representations are essentially PERT charts. Provided is an introduction to AI planners and illustrated is the fact that many such PERT chart representations are created by a planner as it attempts to find a suitable plan. A planner must backtrack when it is evident that further refinement of its current skeletal plan would be fruitless. Such an inconsistent state can be recognized when a plan's PERT chart representation contains an illegal cycle of positive overall length. |
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