Using a Model Based Systems Engineering Approach for Aerospace System Requirements Management

Subarna S, Ankita K Jawale, A. Vidap, Subodh D Sadachar, Shana Fliginger, Srimannarayana Myla
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Abstract

Since systems engineering encompasses the entire scope of a system, successful systems engineering should embody efficient requirements management through a collaborative and interdisciplinary approach. Model Based Systems Engineering (MBSE) is an emerging field, which applies a model-based framework to the elements of a system comprised of requirements, system functions, analysis results, validation and verification artifacts. The effective comprehension of a complex system is more easily visualized through a model-based approach than a document centric one. The representative models and the inherent traceability which one receives through visual associations provides more effective requirements traceability and analysis; and, thus leading to fewer technical risks, earlier detection and resolution of issues, and helps keep schedules and costs in check. This approach yields better, clearer, and more concise requirements and in turn aids in more effective verification and validation processes as well as more expedient impact analyses of unforeseen changes. This paper describes MBSE through SysML (System Modelling Language) by application on a complex aerospace system. The study qualitatively and quantitatively discusses the value addition of such an implementation using commercially available tools that equip SysML to achieve MBSE in systems. SysML is a domain-specific modeling language developed for systems engineering to specify, analyze, design, optimize, and verify systems. From a practitioner's standpoint, this MBSE approach can be used to engineer any complex system from satellite programs to transport networks.
基于模型的系统工程方法在航空航天系统需求管理中的应用
由于系统工程包含了系统的整个范围,成功的系统工程应该通过协作和跨学科的方法体现有效的需求管理。基于模型的系统工程(MBSE)是一个新兴领域,它将基于模型的框架应用于由需求、系统功能、分析结果、确认和验证工件组成的系统元素。通过基于模型的方法比以文档为中心的方法更容易可视化对复杂系统的有效理解。通过视觉关联获得的代表性模型和固有的可追溯性提供了更有效的需求追溯和分析;并且,因此导致更少的技术风险,更早地发现和解决问题,并有助于控制进度和成本。这种方法产生更好、更清晰、更简洁的需求,并且反过来有助于更有效的验证和确认过程,以及对不可预见的变更进行更方便的影响分析。本文通过系统建模语言(SysML)描述了MBSE在复杂航空航天系统中的应用。该研究定性和定量地讨论了使用商业上可用的工具使SysML在系统中实现MBSE的实现的附加价值。SysML是为系统工程开发的特定于领域的建模语言,用于指定、分析、设计、优化和验证系统。从从业者的角度来看,这种MBSE方法可以用于设计任何复杂的系统,从卫星计划到运输网络。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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