NDLI: Plan execution interchange language (plexil)

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Plan execution interchange language (plexil)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Pasareanu, Corina Verma, Vandi Simmons, Reid Tso, Kam Estlin, Tara Jonsson, Ari
Copyright Year	2006
Description	Plan execution is a cornerstone of spacecraft operations, irrespective of whether the plans to be executed are generated on board the spacecraft or on the ground. Plan execution frameworks vary greatly, due to both different capabilities of the execution systems, and relations to associated decision-making frameworks. The latter dependency has made the reuse of execution and planning frameworks more difficult, and has all but precluded information sharing between different execution and decision-making systems. As a step in the direction of addressing some of these issues, a general plan execution language, called the Plan Execution Interchange Language (PLEXIL), is being developed. PLEXIL is capable of expressing concepts used by many high-level automated planners and hence provides an interface to multiple planners. PLEXIL includes a domain description that specifies command types, expansions, constraints, etc., as well as feedback to the higher-level decision-making capabilities. This document describes the grammar and semantics of PLEXIL. It includes a graphical depiction of this grammar and illustrative rover scenarios. It also outlines ongoing work on implementing a universal execution system, based on PLEXIL, using state-of-the-art rover functional interfaces and planners as test cases.
File Size	1913752
Page Count	61
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20060019246
Archival Resource Key	ark:/13960/t28965n6p
Language	English
Publisher Date	2006-04-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Fault Tolerance Semantics Decision Making Commands Language Programming Architecture Computers Planning Autonomy Grammars Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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