本文件是ISO/IEC 26550中描述的软件和系统产品线工程和管理的更通用参考模型的专门化。本文定义的专业化涉及一类方法和工具，称为基于特征的软件和系统产品线工程，或基于特征的PLE，它已成为商业工具提供商支持的经验证且可重复的产品线工程和管理（PLE）实践。 本文件: -？提供特定于基于功能的PLE的术语和定义； -？定义基于特征的PLE如何在产品线工程和管理的通用ISO/IEC 26550参考模型中成为一种专门化； -？为基于特征的PLE的整体结构和过程定义参考模型，并描述参考模型的元素如何组合在一起； -？定义应用产品线参考模型的元素和工具的相互关系和方法； -？定义所需的和支持工具功能。 在本文中，基于特征的PLE产品包括支持系统工程的数字工作产品。一些人工制品实际上是交付产品的一部分，而其他人工制品可能是不可交付的，例如物理或数字设计模型。 本文件的预期受众包括: -？希望为本文件所述参考模型和过程提供自动化工具支持的技术提供商； -？组织内希望在整个组织内引入基于功能的PLE的拥护者； -？PLE组织内的IT员工，他们将引进并维护必要的技术，以支持基于功能的PLE； -？将使用提供的技术实践基于特征的PLE的从业者利益相关者； -？技术和业务经理，他们将赞助和指导实践功能所需的方法- 基于PLE； -？大学教授、研究人员、企业培训师和其他教育工作者，他们将创建和分享关于基于特征的PLE及其好处的教学材料。

This document is a specialization of the more general reference model for software and systems product line engineering and management described in ISO/IEC 26550. The specialization defined herein addresses a class of methods and tools referred to as feature-based software and systems product line engineering, or feature-based PLE, which has emerged as a proven and repeatable product line engineering and management (PLE) practice supported by commercial tool providers. This document: —？provides the terms and definitions specific to feature-based PLE; —？defines how feature-based PLE is a specialization within the general ISO/IEC 26550 reference model for product line engineering and management; —？defines a reference model for the overall structure and processes of feature-based PLE and describes how the elements of the reference model fit together; —？defines interrelationships and methods for applying the elements and tools of the product line reference model; —？defines required and supporting tool capabilities. In this document, products of feature-based PLE include digital work products that support the engineering of a system. Some of the artefacts are actually part of the delivered products, while other artefacts can be non-deliverable, such as physical or digital design models. The intended audience for this document comprises: —？technology providers who wish to provide automated tool support for the reference model and processes described in this document; —？champions within an organization who wish to introduce feature-based PLE throughout that organization; —？IT staff within a PLE organization who will introduce and maintain the necessary technology to support feature-based PLE; —？practitioner stakeholders who will use the provided technology to practice feature-based PLE; —？technical and business managers who will sponsor and direct the methods necessary to practice feature-based PLE; —？university professors, researchers, corporate trainers, and other educators who will create and share pedagogical materials about feature-based PLE and its benefits.