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Using Commercial Off-the-Shelf Software Tools for Space Shuttle Scientific SoftwareIn October 1993, the Astronaut Science Advisor (ASA) was on board the STS-58 flight of the space shuttle. ASA is an interactive system providing data acquisition and analysis, experiment step re-scheduling, and various other forms of reasoning. As fielded, the system runs on a single Macintosh PowerBook 170, which hosts the six ASA modules. There is one other piece of hardware, an external (GW Instruments, Sommerville, Massachusetts) analog-to-digital converter connected to the PowerBook's SCSI port. Three main software tools were used: LabVIEW, CLIPS, and HyperCard: First, a module written in LabVIEW (National Instruments, Austin, Texas) controls the A/D conversion and stores the resulting data in appropriate arrays. This module also analyzes the numerical data to produce a small set of characteristic numbers or symbols describing the results of an experiment trial. Second, a forward-chaining inference system written in CLIPS (NASA) uses the symbolic information provided by the first stage with a static rule base to infer decisions about the experiment. This expert system shell is used by the system for diagnosis. The third component of the system is the user interface, written in HyperCard (Claris Inc. and Apple Inc., both in Cupertino, California).
Document ID
20020014402
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Groleau, Nicolas
(RECOM Technologies, Inc. Moffett Field, CA United States)
Friedland, Peter
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Computer Programming And Software
Meeting Information
Meeting: SEAM''95 3rd Annual Technical Conference and Exposition
Location: San Francisco, CA
Country: United States
Start Date: January 8, 1995
End Date: January 9, 1995
Funding Number(s)
PROJECT: RTOP 233-02-07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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