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Transition from a classic platform reuse approach towards a product line engineering paradigm for existing products is demanding. Existing software design, substantial amount of code, an established development process, organizational set-up of teams and the mindset of involved people must be considered. These factors make the transition challenging compared to a green-field approach, where reusable...
Experience has shown that maintaining software system performance in a complex product line development is a constant challenge, already achieved performance is often degraded over time because proper quality gates are rarely defined or implemented. The established practice of performance verification tests on an integrated software baseline is essential to ensure final quality of the delivered products,...
In software product line engineering (SPLE), commonality and variability across products of a product line domain are captured typically by a feature model. Reusable components are then developed from features. However, mapping features to components remains a complex task requiring a systematic way of exploring and analyzing various concerns arising from inadequate/insufficient domain assumptions...
A complex system's requirements almost always remain uncertain late into its software development. In gas turbine engine control systems at Rolls-Royce, for a traditional project (non-product line) typically 50% of requirements will change between Critical Design Review and Entry into Service. Requirements uncertainty is particularly relevant when defining the scope of a Software Product Line. If...
The growing number of customers and their specific application domains for the NH90 has led to an increasing number of functionally different helicopter variants. In order to cope with the high number of software variants, the NH90 software team has developed a software architecture that is based on Software Product Line (SPL) principles. Military avionics systems are constrained by many factors that...
Feature orientation is an emerging paradigm of software development. It supports the automatic generation of large scale software systems from a set of features. A feature is a unit of functionality that satisfies a requirement, represents a design decision, and provides a potential configuration option. The goal of feature-oriented software development (FOSD) is to consider and trace the features...
Current model-driven software product line development is mostly based on feature/variability modeling techniques, however, we see the potential for automatic assistance in identifying the commonality and variability of a set of models within the domain and synthesizing the product line model based on those. This paper presents a generic approach for synthesizing a software product line using model...
Web services run in complex environments where it is desirable to be able to count on mechanisms to adapt them according to contextual changes. Manual adaptations are unfeasible in intricate service compositions that are built with highly dynamic Web services. However, the principles of Autonomic Computing could support their self-adaptation. In this paper, we propose a method for designing and implementing...
In industrial settings, products are rarely developed by one organization alone. Software vendors and suppliers typically maintain their own product lines, which can contribute to a larger (multi) product line. The teams involved often use different approaches and tools to manage the variability of their systems. It is unrealistic to assume that all participating units can use a standardized and prescribed...
Model-driven software development (MDSD) bridges the gap between domain-specific abstractions and general purpose implementation languages and promises enhanced productivity for software engineering. The availability and appropriateness of tool environments supporting the developer is a crucial factor for such productivity promises. The widespread use of MDSD on various domains means a special challenge...
Generative programming and model transformation techniques are becoming widely used for the development of software components for product lines. The ability to develop components with identified common and variable parts, and rapidly instantiate product-specific versions is key to many software product line approaches. However if this approach is to be truly cost effective for high assurance applications,...
Agile software development has been gaining increasing attention during the last decade. In agile process models, attention is paid to building the ability to respond to change. This is problematic in view of product line engineering and formal modeling, since traditionally these two require heavy up-front planning. We are presenting our experiences on combining these three in an industrial setting...
Software Product Lines are intended to reduce time to market, improve quality and decrease costs. In this paper we examine the evolution of a single system to a Software Product Line, and evaluate if these benefits have occurred in this case. We describe in detail how this evolution took place and relate our experiences to those described in the current literature. Three tenets used by the company...
Software engineering in the automotive domain faces some outstanding challenges in terms of variability and complexity, specific customer relationship with car manufacturers and quickly and continuously changing requirements. Especially power train control systems currently evolve from classic combustions engine focused concepts towards highly divergent solutions like hybrid systems, range extenders...
The efficient reuse of requirements is a main challenge in industries that offer products with a high degree of reuse in their components, like the automotive industry. Here, an efficient and effective variability management (VM) that is highly integrated with the requirements specification process is an essential prerequisite for successful reuse of requirements. This paper presents experiences gained...
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