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A Model-Based Approach to Engineering Behavior of Complex Aerospace SystemsOne of the most challenging yet poorly defined aspects of engineering a complex aerospace system is behavior engineering, including definition, specification, design, implementation, and verification and validation of the system's behaviors. This is especially true for behaviors of highly autonomous and intelligent systems. Behavior engineering is more of an art than a science. As a process it is generally ad-hoc, poorly specified, and inconsistently applied from one project to the next. It uses largely informal representations, and results in system behavior being documented in a wide variety of disparate documents. To address this problem, JPL has undertaken a pilot project to apply its institutional capabilities in Model-Based Systems Engineering to the challenge of specifying complex spacecraft system behavior. This paper describes the results of the work in progress on this project. In particular, we discuss our approach to modeling spacecraft behavior including 1) requirements and design flowdown from system-level to subsystem-level, 2) patterns for behavior decomposition, 3) allocation of behaviors to physical elements in the system, and 4) patterns for capturing V&V activities associated with behavioral requirements. We provide examples of interesting behavior specification patterns, and discuss findings from the pilot project.
Document ID
20150008772
Document Type
Conference Paper
External Source(s)
Authors
Ingham, Michel (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Day, John (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Donahue, Kenneth (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kadesch, Alex (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kennedy, Andrew (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Khan, Mohammed Omair (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Post, Ethan (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Standley, Shaun (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 26, 2015
Publication Date
June 19, 2012
Subject Category
Computer Systems
Meeting Information
Infotech @ Aerospace 2012(Garden Grove, CA)
Distribution Limits
Public
Copyright
Other
Keywords
SysML
modeling
model-based systems engineering
MBSE