---
title: "Planning And Execution in Incompletely Specified Environments"
authors:
  - "Robert T. Chien"
  - "Steven J. Weissman"
doi: ""
url: "https://ijcai.org/proceedings/1975/26"
pdf: "https://ijcai.org/proceedings/1975/0026.pdf"
venue: "Proceedings of the Fourth International Joint Conference on Artificial Intelligence"
year: 1975
pages: "169-173"
track: "Planning and Problem Solving"
keywords:
---

# Planning And Execution in Incompletely Specified Environments

Robert T. Chien, Steven J. Weissman

*Proceedings of the Fourth International Joint Conference on Artificial Intelligence*, pages 169-173.

## Abstract

This paper describes a number of new ideas for p1anning and for the execution of plans in a world which is not completely specified. Such situations often occur in real world environments. Most of the ideas contained here have been implemented in a system for computer-aided decisionmaking for flight operations.