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1. Zearalenone, a fungal oestrogenic compound, was subjected to microbial transformation studies. Preliminary screening with 150 fungal species showed that Gliocladium roseum was capable of metabolizing zearalenone in 80-90% yields. 2. Large-scale fermentation with G. roseum produced a 1:1 mixture of 1-(3,5-dihydroxyphenyl)-10'-hydroxy-1-undecen-6'-one and… (More)
In Software Product Line Engineering, variability modeling plays a crucial rule. Over the years, a couple of different modeling paradigms with a plethora of different approaches have been proposed. However, only little attention was spent to compare these concepts. In this paper, we compare the capabilities and expressiveness of basic feature modeling with… (More)
Development of software product lines requires tool support, e.g., to define variability models, to check variability models for consistency and to derive the artifacts for a specific product. Further capabilities are required when product lines are combined to software ecosystems, i.e., management and development of distributed product lines across… (More)
Software Product Line Engineering is inherently complex. This complexity increases further if multiple product line infrastructures are composed to yield the final products, an approach sometimes referred to as Multi Software Product Lines (MSPL). In this paper, we present an approach that targets this development scenario. The approach we present here aims… (More)
Kurzfassung Im modernen Requirements Engineering werden Anforderungen nicht nur erfasst, sondern gestaltet. Entsprechend ist Innovation in der Anforderungs-gewinnung eine wichtige Aufgabe, die entscheidenden Einfluss auf den Produkterfolg hat. Doch können innovative Ideen systematisch entwickelt werden? Frühere Fallstudien zeigten bereits, dass dies möglich… (More)
The Linux kernel is often used as a real world case study to demonstrate novel Software Product Line Engineering research methods. An important point in this is often the analysis of the Kconfig semantics. However, we detected that the semantics of Kconfig is rather unclear and has many special cases, which are not documented in its short specification. We… (More)
In this paper, we describe EASy-Producer, a prototypical tool for complex and large-scale Software Product Line (SPL) development. The tool enables SPL engineers to reduce complexity by combining derivation and composition techniques to manage one large SPL as a combination of individual, but interrelated SPLs.