Dagstuhl News January - December 2005

"Dagstuhl News" is a publication edited especially for the members of the Foundation "Informatikzentrum Schloss Dagstuhl" to thank them for their support. The News give a summary of the scientific work being done in Dagstuhl. Each Dagstuhl Seminar is presented by a small abstract describing the contents and scientific highlights of the seminar as well as the perspectives or challenges of the research topic

Automated Deduction – CADE 28

This open access book constitutes the proceeding of the 28th International Conference on Automated Deduction, CADE 28, held virtually in July 2021. The 29 full papers and 7 system descriptions presented together with 2 invited papers were carefully reviewed and selected from 76 submissions. CADE is the major forum for the presentation of research in all aspects of automated deduction, including foundations, applications, implementations, and practical experience. The papers are organized in the following topics: Logical foundations; theory and principles; implementation and application; ATP and AI; and system descriptions

The 2020 Expert Survey on Formal Methods

International audienc

Understanding and Evaluating Assurance Cases

Assurance cases are a method for providing assurance for a system by giving an argument to justify a claim about the system, based on evidence about its design, development, and tested behavior. In comparison with assurance based on guidelines or standards (which essentially specify only the evidence to be produced), the chief novelty in assurance cases is provision of an explicit argument. In principle, this can allow assurance cases to be more finely tuned to the specific circumstances of the system, and more agile than guidelines in adapting to new techniques and applications. The first part of this report (Sections 1-4) provides an introduction to assurance cases. Although this material should be accessible to all those with an interest in these topics, the examples focus on software for airborne systems, traditionally assured using the DO-178C guidelines and its predecessors. A brief survey of some existing assurance cases is provided in Section 5. The second part (Section 6) considers the criteria, methods, and tools that may be used to evaluate whether an assurance case provides sufficient confidence that a particular system or service is fit for its intended use. An assurance case cannot provide unequivocal "proof" for its claim, so much of the discussion focuses on the interpretation of such less-than-definitive arguments, and on methods to counteract confirmation bias and other fallibilities in human reasoning

7e Nederlandse testdag, Eindhoven, 8 November 2001 : proceedings

These are the proceedings of the seventh edition of the Nederlandse Testdag (a.k.a. Dutch Testing Day), held on November 8, 2001 in Eindhoven, The Netherlands. The increase in the complexity of software and hardware systems was the predominant concern in the software design of the last decades. This increase is still going on today. and mastering this complexity is possible, only by investigating, discussing and evaluating methods and techniques for testing such systems. The Nederlandse Testdag serves as a forum in which researchers from the industry and the academia discuss and present their latest experiences and theories in the area of testing. The initiative for organising the Nederlandse Testdag is, and has always been, the result of the combined efforts of the Dutch academia and the industry. The Nederlandse Testdag is an annual event which was first held in 1995. This year's edition again consists of one invited presentation by Jens Grabowski, on ITCN-3. and six regular presentations, both from the academia and from the industry. The presentations capture a broad field of the entire testing spectrum. In the presentation by Martin Gijsen (CMG), test automation for Graphical User Interface (GUI), dedicated and embedded systems according to the TestFrame methodology is explained. Klaas Mateboer (Collis) presents the test-tool Conclusion. René de Vries (University of Twente) reports on specification testing in practice and illustrates this by means of an example. In the presentation by Loe Feijs (Eindhoven University of Technology), testing is related to game-theory. Marcel Verhoef (Chess) and Bertil Oving (NLR) present their experiences using real-time simulation, UML and VDM to obtain more reliable spacecraft avionics. Finally, Ben van Buitenen (Baan), provides an insight in service pack testing: how to efficiently test customised software components and packages. The organisation of the Nederlandse Testdag is grateful for the sponsorship it received from the Eindhoven University of Technology, the Eindhoven Embedded Systems Institute, and the financial support from Dutch Research School IPA. We are very much indebted to CMG and Telelogic's willingness to sponsor this event financially. Over the years, both companies have profiled themselves as companies investing both time and resources in advancing the current state in testing. Finally, the organisation thanks Marcella de Rooij and EIize Russell for their organisational assistance