Enabling strategic reuse of engineering and product assets for aircraft systems through Model-Based Systems Engineering and Product Line Engineering practices

赛峰着陆系统公司（SLS）正在启动一个名为通用大型飞机（GLA）的项目，以解决飞机制造商带来的系统复杂性和时间压力。目前，由于再工程成本和缺乏信息可用性，很少有工程和产品资产被机会性地重用。为了解决这个问题，GLA项目旨在定义战略性地重用资产所需的框架。该公司计划通过在各种抽象层次上泛化工件来巩固其经验。更具体地说，工件的初步列表包括需求、产品、计划、安全元素，以及验证和确认经验。拟议的合作研究项目对GLA至关重要。它的目标是定义管理知识和产品线所需的方法、工具、过程和机制，并在新的程序中重用它们。战略重用方法将实现产品线工程（PLE）概念，同时利用基于模型的系统工程（MBSE）带来的结构化方法。首先，该项目涉及对现有方法和工具的贸易研究，并使其适应公司的需求。其次，流程将描述如何创建、维护和实例化作为构建块的知识和产品线。这些过程将被记录为工作流，并集成到伙伴组织中现有的工作流中。第三，该机制将成为系统架构师用于实例化的模型。为了确保有效性，所有GLA元素之间的关系将在元模型中表示。最后，该项目的成果将在概念证明上进行检验，并向更广泛的学术界和工业界传播。

Safran Landing Systems (SLS) is launching a project named Generic Large Aircraft (GLA) to tackle system complexity and time pressure brought on by airframers. Currently, few engineering and product assets are opportunistically reused because of the re-engineering cost and lack of information availability. To address this issue, the GLA project aims to define the framework needed to reuse assets strategically. The company plans to consolidate its experience by generalizing artifacts at various abstraction levels. More concretely, a preliminary list of artifacts includes requirements, products, plans, safety elements, and verification and validation experience. The proposed collaborative research project is pivotal to GLA. Its objective is to define the methods, tools, processes, and mechanism needed to manage knowledge and product lines and reuse them on new programs. The strategic reuse approach will implement product line engineering (PLE) concepts while leveraging the structured approach brought by model-based systems engineering (MBSE). First, the project involves a trade study of existing methods and tools and adapting them to the company's needs. Second, the processes will describe how to create, maintain, and instantiate knowledge and product lines as building blocks. These processes will be documented as workflows and integrated within those existing at the partner organization. Third, the mechanism will be a model that systems architects will use for instantiation. To ensure validity, the relationship between all GLA elements will be represented in a metamodel. Finally, the outcomes of this project will be tested on a proof of concept and disseminated to the wider academic and industrial community.