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Variant exploration is often construed as synonymous with a significant increase in work and a decrease in clarity. Model-Based Systems Engineering (MBSE) has been heralded as a potential solution to streamline the process by supporting exploration of numerous parallel variants within a common multidimensional model. Successful decoupling of variants from their surroundings supports the parallel development...
In the twenty-first century, mission success will require unprecedented interoperability among disparate constituent systems resulting in a System of Systems (SoS). Unlike traditional systems engineering where systems are created based on a set of user needs, a SoS is composed of multiple constituent systems, at various stages within their lifecycles (i.e. new start systems, systems in-development,...
Machine and plant automation (M&PA) is becoming more and more complex, especially, as additional functionality is realized by a rising amount of software. In order to meet high requirements regarding the quality of these machines and plants, sophisticated methods for quality assurance (QA) are needed. Interaction diagrams have been established throughout different domains for specifying use cases,...
Whereas a software component may be perfectly suited to one application, it may prove to cause severe faults in other applications. The pre-standard IEC/PAS 62814 (Dependability of Software Products Containing Reusable Components - Guidance for Functionality and Tests), which has recently been released, addresses the functionality, testing, and dependability of software components to be reused and...
Safety regulations and standards imposed by national regulators on nuclear power plant systems provide high-level requirements, recommendations and/or guidance expressed in natural language. In many cases, this leaves a large margin for interpretation, not all of which are acceptable to a given regulator. Currently the elements that lead to the establishment of acceptable/accepted practices are not...
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