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Feature cardinalities in feature diagrams determine the number of times a feature and its subtree can be duplicated during configuration by an operation named "cloning". Other authors already investigated the problem and published different proposals of semantics for this construct. However, this previous work is not easily amenable to the formal study of(More)
A feature model captures various possible configurations of products within a product family. When configuring a product, several features are selected and composed. Selecting features at the program level has a general limitation of not being able to relate the resulting configuration to its requirements. As a result, it is difficult to decide whether a(More)
To realise variability at the code level, product line methods classically advocate usage of inheritance, components, frameworks, aspects or generative techniques. However, these might require unaffordable paradigm shifts for the developers if the software was not thought at the outset as a product line. Furthermore, these techniques can be conflicting with(More)
In software product lines, feature models are the <i>de-facto</i> standard for representing variability as well as for configuring products. Yet, configuration relying on feature models faces two issues: <i>i)</i> it assumes knowledge of the underlying formalism, which may not be true for end users and <i>ii)</i> it does not take advantage of advanced(More)
Delivering configurable solutions, that is products tailored to the requirements of a particular customer, is a priority of most B2B and B2C markets. These markets now heavily rely on interactive configurators that help customers build complete and correct products. Reliability is thus a critical requirement for configurators. Yet, our experience in(More)
Nowadays, mass customization has been embraced by a large portion of the industry. As a result, the web abounds with sales config-urators that help customers tailor all kinds of goods and services to their specific needs. In many cases, configurators have become the single entry point for placing customer orders. As such, they are strategic components of(More)
Using ISO/IEC 29110, very small entities (VSEs) can perform a step-wise increment of their software process by switching between the different ISO/ IEC profiles. However, ISO/IEC 29110 provides no guidance on how to switch between profiles incrementally, other than resorting to costly software development process experts unaffordable for VSEs. To address(More)